Properties of the Number 25417

Twenty-Five Thousand Four Hundred Seventeen

Basics

Value: 25416 → 25417 → 25418

Parity: odd

Prime: No

Previous Prime: 25411

Next Prime: 25423

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 7 × 3631

Divisors: 1, 7, 3631, 25417

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 110001101001001

Octal: 61511

Duodecimal: 12861

Hexadecimal: 6349

Square: 646023889

Square Root: 159.427099327561

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

Numbers n such that F(2·n - 1) is prime, where F(m) is a Fibonacci number. A117595

Interprimes which are of the form s·prime, s=7. A75282

S-D transform of Catalan numbers A000108. A121908

Number of 2 X 2 matrices with all elements in {-n,..,0,..,n} with permanent = determinant·n. A280407

Composite numbers coprime to 6 such that A179382(n) = A000265(n-1), the odd part of n-1. A225913

Number of excursions of length n with Motzkin-steps avoiding the consecutive steps UU, HH and DD. A329671

G.f. satisfies A(x) = (1 + x·A(x)²)*(1 + x²*A(x)). A200074

Numbers k such that the decimal expansion of k! begins with k. A33147

Least sum of 4 distinct nonzero squares in exactly n ways. A25417

Numbers m > 1 such that the fractional part of log₁₀(m!) is less than at any smaller m > 1. A249829