Properties of the Number 99599

Ninety-Nine Thousand Five Hundred Ninety-Nine

Basics

Value: 99598 → 99599 → 99600

Parity: odd

Prime: No

Previous Prime: 99581

Next Prime: 99607

Digit Sum: 41

Digital Root: 5

Palindrome: Yes

Factorization: 137 × 727

Divisors: 1, 137, 727, 99599

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000010100001111

Octal: 302417

Duodecimal: 4977B

Hexadecimal: 1850f

Square: 9919960801

Square Root: 315.593092446587

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

a(n) = 10^2·n+1 - 4·10ⁿ - 1. A332195

Numerator of 24·Stirling₂(n,4)/n!. A324003

Numbers having four 9's in base 10. A43528

Largest palindrome using minimum number of digits with a digit sum = n. A70244

Near-repdigit semiprimes with 9 as repeated digit. A105990

Triangle T read by rows: coefficients of polynomials generating array A099597. A99599

Numbers k such that (10^k - 1) - 4·10^floor(k/2) is a palindromic wing prime (a.k.a. near-repdigit palindromic prime). A77786

Numbers k such that 10^2k+1 - 4·10^k - 1 is prime. A183186

In base 10 lunar arithmetic, a(n) is the smallest number than has exactly n different square roots (or -1 if no such number exists). A202174

Maximum number of backward steps k needed to find a representation of an n-digit decimal number·as a sum of three base-10 palindromes of the form k-th largest base-10 palindrome <= x plus a number representable as sum of two base-10 palindromes from A260255. A262528