Properties of the Number 25488

Twenty-Five Thousand Four Hundred Eighty-Eight

Basics

Value: 25487 → 25488 → 25489

Parity: even

Prime: No

Previous Prime: 25471

Next Prime: 25523

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 ⁴ × 3 ³ × 59

Divisors: 1, 2, 3, 4, 6, 8, 9, 12, 16, 18

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110001110010000

Octal: 61620

Duodecimal: 12900

Hexadecimal: 6390

Square: 649638144

Square Root: 159.64961634780084

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 k such that k divides the (left) concatenation of all numbers <= k written in base 25 (most significant digit on right and removing all least significant zeros before concatenation). A29542

Numbers k for which A306927(k) [= A001615(k)-k] is a multiple of A344705(k) [= A001615(k)-A001065(k)], and their quotient is nonnegative. A344700

Number of 8-level labeled rooted trees with n leaves. A81624

Numbers of the form p⁴*q³*r where p, q, and r are distinct primes. A179698

Composite numbers such that ∑_i=1..k (p_i/(p_i+1))/∏_i=1..k (p_i/(p_i+1)) is an integer, where p_i are the k prime factors of n (with multiplicity). A227248

Number of reduced 3 X 3 magilatin squares with largest entry n. A174018

a(n) = n! * (1 + ∑_k=0..n (-1)^k * k / k!). A368765

Number of n-step mappings with 5 inputs. A5946

Determinants of 5 X 5 matrices consisting of 25 consecutive primes. A118815

a(n) = (8/9)*(2+7*(-8)^n-1). A165748