Properties of the Number 69645

Sixty-Nine Thousand Six Hundred Forty-Five

Basics

Value: 69644 → 69645 → 69646

Parity: odd

Prime: No

Previous Prime: 69623

Next Prime: 69653

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 4643

Divisors: 1, 3, 5, 15, 4643, 13929, 23215, 69645

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001000000001101

Octal: 210015

Duodecimal: 34379

Hexadecimal: 1100d

Square: 4850426025

Square Root: 263.9033914143583

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

Numbers k such that (11·10^k + 19)/3 is prime. A270339

Numbers k such that there are 10 digits in k² and for each factor f of 10 (1, 2, 5) the sum of digit groupings of size f is a square. A153748

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, -1, 1), (0, 1, -1), (0, 1, 0), (1, 0, 1)}. A150020

Define sds(n) = sum of the squares of the digits of n. Sequence gives smaller of two consecutive squares with sds(k²) = sds((k+1)²). A69645