Properties of the Number 18653

Eighteen Thousand Six Hundred Fifty-Three

Basics

Value: 18652 → 18653 → 18654

Parity: odd

Prime: No

Previous Prime: 18637

Next Prime: 18661

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 23 × 811

Divisors: 1, 23, 811, 18653

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100100011011101

Octal: 44335

Duodecimal: A965

Hexadecimal: 48dd

Square: 347934409

Square Root: 136.57598617619425

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

Number of partitions p of n such that 2*(number of even numbers in p) < (number of odd numbers in p). A241651

Consecutive states of the linear congruential pseudo-random number generator (419·s + 6173) mod 29282 when started at s=1. A385036

a(n) = 1 + 2·least i such that A103507(i)=n+1, 0 if no such i exists. A103508

Number of ways prime(n) can be expressed as the sum of distinct smaller noncomposites. A215966

Numbers n such that prime(n) and φ(n) have the same decimal digits. A243462

Number of n X 4 binary arrays with rows and columns lexicographically nondecreasing and row and column sums nonincreasing. A266543

Number of n X 2 0..2 arrays with no element equal to any value at offset (-2,-1) (-2,0) or (-1,1) and new values introduced in order 0..2. A275395

Number of permutations of [n] avoiding {1243, 2431, 3412}. A294695

Squarefree semiprimes k such that k+1 is the product of three distinct primes and k+2 is the product of four distinct primes. A376352

Discriminants of real quadratic fields with class number 1 and related continued fraction period length of 18. A50967