Properties of the Number 99631

Ninety-Nine Thousand Six Hundred Thirty-One

Basics

Value: 99630 → 99631 → 99632

Parity: odd

Prime: No

Previous Prime: 99623

Next Prime: 99643

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 7 × 43 × 331

Divisors: 1, 7, 43, 301, 331, 2317, 14233, 99631

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000010100101111

Octal: 302457

Duodecimal: 497A7

Hexadecimal: 1852f

Square: 9926336161

Square Root: 315.6437865696076

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

10-gonal (or decagonal) pyramidal numbers: a(n) = n*(n + 1)*(8·n - 5)/6. A7585

Triangle read by rows. T(n, k) = 1 if n = k, otherwise T(n, k) = ∑_j=0..k-1 (-1)^{j - k - 1} * (n + j + 1)^n-1 / (j! * (k - 1 - j)!). A360177

Number of growing self-avoiding walks of length n on a half-infinite strip of height 4 with a trapped endpoint. A374299

Expansion of 1/((1-8·x)*(1-9·x)*(1-10·x)). A20976

Numbers k such that k and k² use only the digits 1, 2, 3, 6 and 9. A136981

Number of n X 4 binary arrays without the pattern 0 1 diagonally or vertically. A188838

Odd decagonal pyramidal numbers. A218330

Numbers n such that for every k = 1, 2, ..., A305706(n)-1, it is possible to insert plus signs into the decimal representation of n^k to make sum equal n. A305707

Numbers n such that (σ(n-2)+σ(n+2))/2 = σ(n). A99631