Properties of the Number 68880

Sixty-Eight Thousand Eight Hundred Eighty

Basics

Value: 68879 → 68880 → 68881

Parity: even

Prime: No

Previous Prime: 68879

Next Prime: 68881

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 2 ⁴ × 3 × 5 × 7 × 41

Divisors: 1, 2, 3, 4, 5, 6, 7, 8, 10, 12

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: 10000110100010000

Octal: 206420

Duodecimal: 33A40

Hexadecimal: 10d10

Square: 4744454400

Square Root: 262.449995237188

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) = n*(n-1)*(n-2) (or n!/(n-3)!). A7531

Order of the group SL(2,Z_n). A56

Triangle read by rows: T(n,k) = the number of ascending runs of length k in the permutations of [n] for k <= n. A122843

Product of three numbers: n-th prime, previous number, and following number. A127917

Number of non-congruent solutions to x² + y² + z² + t² == 1 (mod n). A208895

Triangle read by rows: T(n,k) = number of circuits of length k in the complete undirected graph on n labeled vertices, for n >= 1 and k = 0 .. n(n-1)/2. A357887

Values of·such that x² + y² = 29ⁿ with·and y coprime and 0 < x < y. A230644

E.g.f.: 1/∏_k>0 (1 - x^k/k)^k. A294469

a(n) = (2·n+2)*(2·n+3)*(2·n+4) = 24·A000330(n+1). A69074

Numbers with prime factorization p·q*r·s*t⁴ (where p, q, r, s, t are distinct primes). A190110