Properties of the Number 25390

Twenty-Five Thousand Three Hundred Ninety

Basics

Value: 25389 → 25390 → 25391

Parity: even

Prime: No

Previous Prime: 25373

Next Prime: 25391

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 5 × 2539

Divisors: 1, 2, 5, 10, 2539, 5078, 12695, 25390

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110001100101110

Octal: 61456

Duodecimal: 1283A

Hexadecimal: 632e

Square: 644652100

Square Root: 159.3423986263543

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 that contain as proper substrings every maximal prime power dividing them. A59401

Number of n X n arrays of squares of integers summing to 22 with every element equal to at least one neighbor. A146516

Integers k such that 3·k!!! - 1 is prime where k!!! is A007661(k). A271396

Number of permutations of [n] avoiding {4231, 1324, 1234}. A294763

Numbers k such that 6·10^2·k + 6·10^k + 1 is prime. A309741

Numbers whose base-5 representation contains exactly three 0's and three 3's. A45202

Expansion of ∑_{p prime, i>=1} pⁱ*x^pⁱ/(1 - x^pⁱ) / ∏_j>=1 (1 - x^j). A281906

G.f. = ((2+3·x)/(1-x²-x³))². A350602

Numbers that are the sum of 4 distinct nonzero squares in 6 or more ways. A25390

Square numbers s such that all the digits needed to write the consecutive square numbers from 0 to s fill exactly a square (no holes, no overlaps). A158028