Properties of the Number 25441

Twenty-Five Thousand Four Hundred Forty-One

Basics

Value: 25440 → 25441 → 25442

Parity: odd

Prime: No

Previous Prime: 25439

Next Prime: 25447

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 13 × 19 × 103

Divisors: 1, 13, 19, 103, 247, 1339, 1957, 25441

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 110001101100001

Octal: 61541

Duodecimal: 12881

Hexadecimal: 6361

Square: 647244481

Square Root: 159.50235107985085

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

T(n,k)=Number of nXk 0..2 arrays with no more than floor(nXk/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order. A222573

Products of three distinct happy primes A035497. A154717

Odd composite integers m such that U(m)² == 1 (mod m) and V(m) == 6 (mod m), where U(m) and V(m) are the m-th generalized Lucas and Pell-Lucas numbers of parameters a=6 and b=-1, respectively. A337629

Number of connected relations. A92794

a(n) = prime(n)_prime(n). A122622

Number of nX6 0..2 arrays with no more than floor(nX6/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order. A222571

Odd composite integers m such that A085447(m) == 6 (mod m). A338078

Number of 4Xn 0..2 arrays with no more than floor(4Xn/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order. A222576

Least integer k such that the n-th prime of form m²+1 divides the composite number k²+1. A255675

Number of partitions of n into 2 distinct nonzero squares. A25441