Properties of the Number 25139

Twenty-Five Thousand One Hundred Thirty-Nine

Basics

Value: 25138 → 25139 → 25140

Parity: odd

Prime: No

Previous Prime: 25127

Next Prime: 25147

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 23 × 1093

Divisors: 1, 23, 1093, 25139

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 110001000110011

Octal: 61063

Duodecimal: 1266B

Hexadecimal: 6233

Square: 631969321

Square Root: 158.55283031217073

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 there is 1 prime between 100·k and 100·k + 99. A186393

Number n such that a2 - n³ is a triangular number (A000217), where a2 is the least square above n³. A233400

Numbers k such that the ring of integers of Q(2^1/k) is not Z[2^1/k]. A342390

Number of 7Xn 0..1 arrays with every element equal to 0, 1, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A302685

T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A302680

4th elementary symmetric function of C(n,0), C(n,1), ..., C(n,[ n/2 ]). A25139