Properties of the Number 65572

Sixty-Five Thousand Five Hundred Seventy-Two

Basics

Value: 65571 → 65572 → 65573

Parity: even

Prime: No

Previous Prime: 65563

Next Prime: 65579

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 13 ² × 97

Divisors: 1, 2, 4, 13, 26, 52, 97, 169, 194, 338

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000000000100100

Octal: 200044

Duodecimal: 31B44

Hexadecimal: 10024

Square: 4299687184

Square Root: 256.0703028466987

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

a(1) = 1; for n > 1, a(n) = smallest number > a(n-1) having exactly n divisors. A69654

a(1)=1. a(n) = the smallest integer > a(n-1) such that |d(a(n)) - d(a(n-1))| = n-1, where d(m) = the number of positive divisors of m. A139695

a(n) = 97·n². A174338

Number of n X 6 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 1 0 1 vertically. A208377

Numbers k such that (19·10^k + 119)/3 is prime. A281929

Composite numbers k such that φ(k) = φ(k-1) + φ(k-2). A65572

Number of nX4 0..1 arrays with every element equal to 0, 1, 2, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A303012