Properties of the Number 18358

Eighteen Thousand Three Hundred Fifty-Eight

Basics

Value: 18357 → 18358 → 18359

Parity: even

Prime: No

Previous Prime: 18353

Next Prime: 18367

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 × 67 × 137

Divisors: 1, 2, 67, 134, 137, 274, 9179, 18358

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100011110110110

Octal: 43666

Duodecimal: A75A

Hexadecimal: 47b6

Square: 337016164

Square Root: 135.49169716259368

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

T(n,k)=Number of nXk 0..1 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A281765

Convolution triangle based on A001333(n), n >= 1. A54458

Difference between the sum of next prime(n) natural numbers and the sum of next n primes. A82749

Triangle read by rows in which the binomial transform of the n-th row gives the Euler transform of the n-th diagonal of Pascal's triangle (A007318). A116672

Triangle of coefficients of polynomials v(n,x) jointly generated with A209695; see the Formula section. A209696

Index sequence for limit-block extending A000002 (Kolakoski sequence) with first term as initial block. A246145

G.f.: M(F(x)) is a power series in·consisting entirely of positive integer coefficients such that M(F(x) - x^k) has negative coefficients for k>0, where M(x) = 1 + x·M(x) + x·M(x)² is the g.f. of the Motzkin numbers A001006. A251571

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 670", based on the 5-celled von Neumann neighborhood. A273394

Number of nX4 0..1 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A281761

Number of 7Xn 0..1 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A281771