Properties of the Number 18146

Eighteen Thousand One Hundred Forty-Six

Basics

Value: 18145 → 18146 → 18147

Parity: even

Prime: No

Previous Prime: 18143

Next Prime: 18149

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 43 × 211

Divisors: 1, 2, 43, 86, 211, 422, 9073, 18146

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100011011100010

Octal: 43342

Duodecimal: A602

Hexadecimal: 46e2

Square: 329277316

Square Root: 134.70708964267618

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

Twice 12-gonal numbers: a(n) = 2·n*(5·n-4). A152965

a(n) = (p² - p + 2)/2 for p = prime(n); number of squares modulo p². A72205

Number of points on surface of truncated tetrahedron: a(n) = 14·n² + 2 for n > 0, a(0)=1. A5905

Ceiling(4*π*n²). A135971

a(n) is the smallest positive integer which can be represented as the sum of distinct nonzero icosahedral numbers in exactly n ways, or -1 if no such integer exists. A360215

Second binomial transform of expansion of exp(3cosh(x)). A81566

Nearest integer to 4*π*n². A322615

Numbers k such that the sums (with multiplicity) of prime factors of k and k+1 are both squares. A359445

Powers of fifth root of 11 rounded up. A18146