Properties of the Number 51039

Fifty-One Thousand Thirty-Nine

Basics

Value: 51038 → 51039 → 51040

Parity: odd

Prime: No

Previous Prime: 51031

Next Prime: 51043

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 53 × 107

Divisors: 1, 3, 9, 53, 107, 159, 321, 477, 963, 5671

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100011101011111

Octal: 143537

Duodecimal: 25653

Hexadecimal: c75f

Square: 2604979521

Square Root: 225.91812676277218

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

Structured rhombic dodecahedral numbers (vertex structure 9). A100157

1/24 of product of three numbers: n-th prime, previous and following number. A127922

Number of n-node graphs not determined by their spectrum. A6608

a(n) is the number of edges formed by n-secting the angles of a nonagon (enneagon). A335783

Odd square pyramidal numbers. A15221

a(n) is the smallest square pyramidal number with binary weight n. A359318

Erroneous version of A006608. A99883

Number of squares formed from a square composed of p² unit squares where p is n-th prime. A262247

4-Stohr sequence. A51039

Square array A(n, k) = A048720(A065621(σ((2n-1)²)), σ((2k-1)²)), read by falling antidiagonals, (1,1), (1,2), (2,1), (1,3), (2,2), (3,1), etc. A379221