Properties of the Number 39145

Thirty-Nine Thousand One Hundred Forty-Five

Basics

Value: 39144 → 39145 → 39146

Parity: odd

Prime: No

Previous Prime: 39139

Next Prime: 39157

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 5 × 7829

Divisors: 1, 5, 7829, 39145

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001100011101001

Octal: 114351

Duodecimal: 1A7A1

Hexadecimal: 98e9

Square: 1532331025

Square Root: 197.85095400325974

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

Number of ordered pairs of endofunctions (f,g) on a set of n elements satisfying f(x) = g(f(f(x))). A235328

a(n) = 74·n² - 1. A158744

Square array T(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where T(n,k) = n! * ∑_j=0..n (k * (n-j))^j/j!. A351790

Numbers whose base-10 representation has the same number of 4's and 9's. A39145