Properties of the Number 25145

Twenty-Five Thousand One Hundred Forty-Five

Basics

Value: 25144 → 25145 → 25146

Parity: odd

Prime: No

Previous Prime: 25127

Next Prime: 25147

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 5 × 47 × 107

Divisors: 1, 5, 47, 107, 235, 535, 5029, 25145

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 110001000111001

Octal: 61071

Duodecimal: 12675

Hexadecimal: 6239

Square: 632271025

Square Root: 158.5717503214239

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

Expansion of ∏_k>=1 1 / (1 - 7^k-1*x^k). A338676

Expansion of g.f. A(x) satisfying A(x) = ∑_n=-oo..+oo (-1)ⁿ * xⁿ * (A(x)² + x^n-1)ⁿ⁺¹. A361770

Number of n-digit primes that are the sum of six consecutive squares of nonnegative numbers. A218211

Sum of n-th row of triangle in A079784. A79783

a(n) = ∑_k=0..2n (k+1) * A027052(n, k). A27075

Number of 3 X 3 matrices with elements from [0,...,(n-1)] satisfying the condition that the middle element of each row or column is the difference of the two end elements (in absolute value). A58333

Hankel transform of A078818. A218440

Triangle of coefficients T(n,k) of xⁿ*y^k in g.f. A(x,y) satisfying y = ∑_n=-oo..+oo (-1)ⁿ * xⁿ * (y·A(x,y) + x^n-1)ⁿ⁺¹. A359670

G.f. A(x) satisfies: [x^n-1] 1/A(x)^n² = 0 for n>2. A292877

Numbers k such that (#1's in s(1),...,s(k)) = -1 + (#1's in r(1),...,r(k)), where s = A025142 and r = A025143. A25145