Properties of the Number 74907

Seventy-Four Thousand Nine Hundred Seven

Basics

Value: 74906 → 74907 → 74908

Parity: odd

Prime: No

Previous Prime: 74903

Next Prime: 74923

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 7 × 29 × 41

Divisors: 1, 3, 7, 9, 21, 29, 41, 63, 87, 123

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010010010011011

Octal: 222233

Duodecimal: 37423

Hexadecimal: 1249b

Square: 5611058649

Square Root: 273.691432090959

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

4-dimensional pyramidal numbers: a(n) = (3·n+1)*binomial(n+2, 3)/4. Also Stirling2(n+2, n). A1296

a(1)=1, a(2)=2, a(3)=11, a(4)=19; a(n) = a(n-4) + sqrt(60·a(n-2)² + 60·a(n-2) + 1) for n >= 5. A103200

Number of 5-tuples (v1,v2,v3,v4,v5) of nonnegative integers less than n such that v1 <= v4, v1 <= v5, v2 <= v4, v2 <= v5 and v3 <= v4. A85463

The Wiener index of the Dutch windmill graph D(6,n) (n>=1). A180578

Numbers n such that n·x/(x-1) produces a rotation of the digits in n for some value of x. A288669

Number of n X 5 binary arrays without the pattern 0 1 diagonally or vertically. A188839

Numbers k such that 60·k² + 60·k + 1 is a square. A105076

Aliquot sequence starting at 570. A74907