Properties of the Number 18632

Eighteen Thousand Six Hundred Thirty-Two

Basics

Value: 18631 → 18632 → 18633

Parity: even

Prime: No

Previous Prime: 18617

Next Prime: 18637

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ³ × 17 × 137

Divisors: 1, 2, 4, 8, 17, 34, 68, 136, 137, 274

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100100011001000

Octal: 44310

Duodecimal: A948

Hexadecimal: 48c8

Square: 347151424

Square Root: 136.49908424601244

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

Product of a prime and the previous number. A36689

Numbers m whose abundance σ(m) - 2m = -4. Numbers whose deficiency is 4. A125246

Numbers k such that k² divides 9^k - 1. A127101

Numbers k such that k² divides 15^k-1. A128395

Numbers k such that k³ divides 15^k² - 1. A177915

Even and odd solutions to abs(σ(x)-2x) <= log(x). Numbers n whose abundance-radius does not exceed log(n). A88011

Deficient-perfect numbers: Deficient numbers n such that n/(2n-σ(n)) is an integer. A271816

a(n) = 1·2*3 - 4·5*6 + 7·8*9 - 10·11·12 + 13·14·15 - ... + (up to n). A319543

Expansion of Molien series for 8-dimensional real Clifford group 2¹⁺⁶.Alt₈.2 of genus 3 and order 5160960. A24186

Total sum of parts of multiplicity 1 in all partitions of n. A103628