Properties of the Number 69989

Sixty-Nine Thousand Nine Hundred Eighty-Nine

Basics

Value: 69988 → 69989 → 69990

Parity: odd

Prime: No

Previous Prime: 69959

Next Prime: 69991

Digit Sum: 41

Digital Root: 5

Palindrome: No

Factorization: 17 × 23 × 179

Divisors: 1, 17, 23, 179, 391, 3043, 4117, 69989

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001000101100101

Octal: 210545

Duodecimal: 34605

Hexadecimal: 11165

Square: 4898460121

Square Root: 264.5543422437061

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

Harmonic mean of digits is 8. A62185

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 553", based on the 5-celled von Neumann neighborhood. A272848

Smallest number with additive excess n. A244744

(-1)ⁿ⁺¹/2·sum(k=1,2n,C(2n+1,k)*B(k)*4^k) where C(n,k) are the binomial coefficients, B(k) the Bernoulli numbers. A69989

Least number k such that (1+1/k)^k yields n digits of e (A001113). A105053