Properties of the Number 64172

Sixty-Four Thousand One Hundred Seventy-Two

Basics

Value: 64171 → 64172 → 64173

Parity: even

Prime: No

Previous Prime: 64171

Next Prime: 64187

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 61 × 263

Divisors: 1, 2, 4, 61, 122, 244, 263, 526, 1052, 16043

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111101010101100

Octal: 175254

Duodecimal: 31178

Hexadecimal: faac

Square: 4118045584

Square Root: 253.32192956789194

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 that are the sum of 9 positive 10th powers. A4809

a(n) = ∑_{-n<i<n, -n<j<n, gcd{i,j}=1} (n-|i|)*(n-|j|). A331771

a(n) is the nearest integer to sqrt(π(10ⁿ)) (see A006880). A221205

Triangle read by rows: T(n,m) (n >= m >= 1) = number of edges in the graph formed by drawing the line segments connecting any two of the (n+1) X (m+1) lattice points in an n X m grid of squares. A333278

Indices of primes in the tribonacci-like sequence, A214825. A230016

Koechel numbers of Mozart's piano concerti, from the original Koechel catalog. A64172