Properties of the Number 71975

Seventy-One Thousand Nine Hundred Seventy-Five

Basics

Value: 71974 → 71975 → 71976

Parity: odd

Prime: No

Previous Prime: 71971

Next Prime: 71983

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 5 ² × 2879

Divisors: 1, 5, 25, 2879, 14395, 71975

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001100100100111

Octal: 214447

Duodecimal: 3579B

Hexadecimal: 11927

Square: 5180400625

Square Root: 268.28156850592626

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(n) is the smallest positive integer which can be represented as the sum of distinct nonzero n-gonal pyramidal numbers in exactly n ways, or 0 if no such integer exists. A350210

Number of rooted binary normal unlabeled galled trees with n leaves and exactly 1 gall. A380256

Irregular triangle read by rows: T(n,k) is the number of rooted binary normal unlabeled galled trees with n leaves and exactly k galls, 0 <= k <= floor((n-1)/2). A380306

Numbers that are the sum of 2 distinct nonzero squares in 8 or more ways. A25318

Denominator of rational number i/j such that Sagher map sends i/j to n. A71975