Properties of the Number 74900

Seventy-Four Thousand Nine Hundred

Basics

Value: 74899 → 74900 → 74901

Parity: even

Prime: No

Previous Prime: 74897

Next Prime: 74903

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 5 ² × 7 × 107

Divisors: 1, 2, 4, 5, 7, 10, 14, 20, 25, 28

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010010010010100

Octal: 222224

Duodecimal: 37418

Hexadecimal: 12494

Square: 5610010000

Square Root: 273.67864366808016

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) = ∑_{d divides n} (n/d)^2d. A73705

a(n) = ∑_{d∣n, n/d odd} (n/d)^d. A333824

Left border of triangle A137629. A137631

Number of subsets of {1,2,3,...,n} that sum to 0 mod 7. A68013

Number of subsets of {1,2,3,...,n} that sum to 0 mod 14. A68035

a(n) = a(n-3) + 2^n-4 with a(1) = 1, a(2) = 2, a(3) = 1. A166578

Expansion of g.f. (1 - 2·x² - 3·x³)/((1 - x³)*(1 - 2·x)). A63823

T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with every 2X2 subblock diagonal minus antidiagonal sum nondecreasing horizontally and vertically. A253159

Numbers n for which 3·n is an isolated deficient number. A273125

Base 4 expansion of 1/n has equal percentage of each digit 0,1,2,3 (primitive values of n only). A74900