Properties of the Number 51025

Fifty-One Thousand Twenty-Five

Basics

Value: 51024 → 51025 → 51026

Parity: odd

Prime: No

Previous Prime: 51001

Next Prime: 51031

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 5 ² × 13 × 157

Divisors: 1, 5, 13, 25, 65, 157, 325, 785, 2041, 3925

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100011101010001

Octal: 143521

Duodecimal: 25641

Hexadecimal: c751

Square: 2603550625

Square Root: 225.88713996153035

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

Number of partitions of 5n with equal nonzero number of parts congruent to each of 1, 2, 3 and 4 modulo 5. A46787

Number of (w,x,y,z) with all terms in {1,...,n} and w·x>y·z+2. A212056

T(n,k)=Number of nXk arrays of occupancy after each element stays put or moves to some king-move neighbor. A221225

a(n) = n*(7·n²-12·n+7)/2. A226451

Number of n X 2 arrays of occupancy after each element stays put or moves to some king-move neighbor. A221223

Primes p for which pi_4,3(p) - pi_4,1(p) = -1, where pi_m,a(x) is the number of primes <= x which are congruent to a (mod m). A51025