Properties of the Number 68425

Sixty-Eight Thousand Four Hundred Twenty-Five

Basics

Value: 68424 → 68425 → 68426

Parity: odd

Prime: No

Previous Prime: 68399

Next Prime: 68437

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 5 ² × 7 × 17 × 23

Divisors: 1, 5, 7, 17, 23, 25, 35, 85, 115, 119

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000101101001001

Octal: 205511

Duodecimal: 33721

Hexadecimal: 10b49

Square: 4681980625

Square Root: 261.5817271905666

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! * ∑_k=0..n k³ / k!. A337001

Denominators of a fractional order v differentiation of the Bernoulli polynomials with v = 1/2, evaluated at x = 1 and normalized by sqrt(π). A346712

Square array T(n,k), n>=0, k>=0, read by antidiagonals, where T(n,k) = n! * ∑_j=0..n j^k/j!. A337085

Integers k such that the equation A034699(k)=x has more than one solution in the range [prevprime(k), nextprime(k)]. A308752

The denominators of the semiderivative of the Bernoulli polynomials at x = 1 and normalized by sqrt(π). A346710

Nonsquarefree numbers k such that A370681(k) = A071324(k). A370683

Integers i such that the equation A088387(i) = p has N > 1 solutions in the interval prevprime(i)..nextprime(i). A308617

A triangle sequence of matrix polynomials: M(d)=Table[If[ m == n, n!, 1], {n, 1, d}, {m, 1, d}].Table[If[ m == n, d!/n!, -1], {n, 1, d}, {m, 1, d}]. A158419

Number of nonisomorphic 2-connected circle graphs of order n. A318188

a(n) = floor(2ⁿ*π). A68425