Properties of the Number 68969

Sixty-Eight Thousand Nine Hundred Sixty-Nine

Basics

Value: 68968 → 68969 → 68970

Parity: odd

Prime: No

Previous Prime: 68963

Next Prime: 68993

Digit Sum: 38

Digital Root: 2

Palindrome: No

Factorization: 17 × 4057

Divisors: 1, 17, 4057, 68969

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000110101101001

Octal: 206551

Duodecimal: 33AB5

Hexadecimal: 10d69

Square: 4756722961

Square Root: 262.6194966105906

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) = ∑_k=1..n k·sigma_n-1(k). A356129

Hypotenuses of primitive Pythagorean triples in A195544 and A195545. A195546

Number of conjugacy classes of elements of order n in E₈(C). A45514

Areas of integer Heronian triangles [A068967(n), prime(A068967(n)), A068968(n)]. A68969

Square array T(n,k), n >= 1, k >= 0, read by antidiagonals downwards, where T(n,k) = ∑_j=1..n j^k * binomial(floor(n/j)+1,2). A356124