Properties of the Number 30923

Thirty Thousand Nine Hundred Twenty-Three

Basics

Value: 30922 → 30923 → 30924

Parity: odd

Prime: No

Previous Prime: 30911

Next Prime: 30931

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 17 ² × 107

Divisors: 1, 17, 107, 289, 1819, 30923

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100011001011

Octal: 74313

Duodecimal: 15A8B

Hexadecimal: 78cb

Square: 956231929

Square Root: 175.8493673574062

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

List of different composite numbers in Pascal-like triangles with index of asymmetry y = 1 and index of obliqueness z = 0 or z = 1. A141065

Starts of runs of exactly 6 consecutive nonsquarefree numbers. A49535

Starts for strings of at least five consecutive nonsquarefree numbers. A78144

Nonsquarefree numbers k such that A003415(k) divides A276086(k), where A003415 is the arithmetic derivative, and A276086 is the primorial base exp-function. A371085

Least starting number initiating cubefree but nonsquarefree chain of consecutive integers with length n {j,j+1,...,j+n-1}; i.e., start of n consecutive numbers in A067259. A71125

Least of four consecutive numbers which are cubefree and not squarefree, i.e., numbers k such that {k, k+1, k+2, k+3} are in A067259. A71320

a(n) is the least start of a run of exactly n consecutive integers with the same maximal exponent in their prime factorization, or -1 if no such run exists. A369022

Least of five consecutive numbers which are cubefree and not squarefree, i.e., {k, k+1, k+2, k+3, k+4} are in A067259. A71124

Continued fraction expansion of a constant r such that the odd-indexed bisection equals the continued fraction of 2·r, with an even-indexed bisection of all 2's. A322728

[ exp(11/13)*n! ]. A30923