Properties of the Number 68993

Sixty-Eight Thousand Nine Hundred Ninety-Three

Basics

Value: 68992 → 68993 → 68994

Parity: odd

Prime: Yes

Previous Prime: 68963

Next Prime: 69001

Digit Sum: 35

Digital Root: 8

Palindrome: No

Factorization: 68993

Divisors: 1, 68993

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000110110000001

Octal: 206601

Duodecimal: 33B15

Hexadecimal: 10d81

Square: 4760034049

Square Root: 262.6651861210389

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

Expansion of ∏_k>=1 B(x^k), where B(x) is the g.f. of A003114. A327690

G.f. A(x) satisfies: 1 = ∑_n>=0 xⁿ * (1 + n·x)ⁿ / A(x)ⁿ⁺¹. A324614

Primes of the form 22*(n²)+1. A117049

Smallest of four consecutive primes whose average is a triangular number. A226155

Minimal value of k > 0 such that n³ + k² is semiprime. A109198

Numbers k such that A062799(k) = 4. A68993

Table read by antidiagonals: T(n,k) (n >= 3, k >= 0) is the number of vertices in a regular n-gon after k generations of mitosis. A350501

Smaller of two consecutive oblong numbers which are anagrams of each other. A337784