Properties of the Number 71390

Seventy-One Thousand Three Hundred Ninety

Basics

Value: 71389 → 71390 → 71391

Parity: even

Prime: No

Previous Prime: 71389

Next Prime: 71399

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 5 × 11 ² × 59

Divisors: 1, 2, 5, 10, 11, 22, 55, 59, 110, 118

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

603 Try Today's Challenge

Representations

Binary: 10001011011011110

Octal: 213336

Duodecimal: 35392

Hexadecimal: 116de

Square: 5096532100

Square Root: 267.1890716328046

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

Expansion of ∑_k>=1 prime(k)*x^prime(k)/(1 - x^prime(k)) * ∏_k>=1 1/(1 - x^prime(k)). A276560

Least number m such that σ(m) - φ(m) = n, or 0 if no such m exists. A71390