Properties of the Number 25122

Twenty-Five Thousand One Hundred Twenty-Two

Basics

Value: 25121 → 25122 → 25123

Parity: even

Prime: No

Previous Prime: 25121

Next Prime: 25127

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 53 × 79

Divisors: 1, 2, 3, 6, 53, 79, 106, 158, 159, 237

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110001000100010

Octal: 61042

Duodecimal: 12656

Hexadecimal: 6222

Square: 631114884

Square Root: 158.49921135450487

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 σ(k) = σ(k+8). A15876

The sum of the numbers on straight lines of incrementing length n when drawn over numbers of the square spiral, where each line contains numbers which sum to the minimum possible value, and each number on the spiral can only be in one line. If two or more lines exist with the same sum the one containing the smallest number is chosen. A340974

Concatenate n and the sum of factorials of the digits of n. A109016

Convolution of Fibonacci numbers and A000201. A23611

Numbers n such that A048767(n+1)=A048767(n). A48769

a(n) = 3·a(n-1)+n if a(n-1) is not divisible by 2, or a(n) = a(n-1)/2 otherwise. A135294

Semiperimeter of the unique primitive Pythagorean triple whose inradius is the n-th odd prime and whose short leg is an even number. A380301

a(0)=1, a(n)=4a(n-1)+2 for n odd, a(n)=4a(n-1) for n even. A117614

Integers that do not have a partition into a sum of an odd square and two (not necessarily distinct) triangular numbers. A191764

a(n) = (4·n+3)*(4·n+2). A256833