Properties of the Number 99645

Ninety-Nine Thousand Six Hundred Forty-Five

Basics

Value: 99644 → 99645 → 99646

Parity: odd

Prime: No

Previous Prime: 99643

Next Prime: 99661

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 7 × 13 × 73

Divisors: 1, 3, 5, 7, 13, 15, 21, 35, 39, 65

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11000010100111101

Octal: 302475

Duodecimal: 497B9

Hexadecimal: 1853d

Square: 9929126025

Square Root: 315.66596268840897

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) = ∑_d∣n (-1)^n/d+1*d⁴. A284900

Mean of first six positive powers of n, i.e., (n + n² + n³ + n⁴ + n⁵ + n⁶)/6. A59721

a(n) = ∑_{d >= 1, d divides n} (-1)^n-d*d⁴. A279395

A level 11 weight 5 form. A65103

Numbers k such that (6·k+1)*(12·k+1)*(18·k+1) is a Carmichael number which is the product of four prime numbers. A221743

Products of 5 distinct primes a,b,c,d,e, such that a+b+c+d+e are prime numbers. A178782

Number of iterations until n reaches a number in A039943 under "x goes to sum of squares of digits of x" map. A99645