Properties of the Number 74165

Seventy-Four Thousand One Hundred Sixty-Five

Basics

Value: 74164 → 74165 → 74166

Parity: odd

Prime: No

Previous Prime: 74161

Next Prime: 74167

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 5 × 7 × 13 × 163

Divisors: 1, 5, 7, 13, 35, 65, 91, 163, 455, 815

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010000110110101

Octal: 220665

Duodecimal: 36B05

Hexadecimal: 121b5

Square: 5500447225

Square Root: 272.3325173386388

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

Triangle of coefficients from fractional iteration of e^x - 1. A8826

a(n) = floor(M(g(n-1)+1,..,g(n))), where M is the harmonic mean and g(n) = n⁴. A227013

Triangle read by rows: T(n-1,k), where n >= 2 and 1 <= k <= floor(n/2), is the number of permutations of (1, 2, ..., n) having k consecutive pairs but no consecutive sequences of length greater than 2. A289632

Triangle read by rows: T(n,k) is the number of permutations of [n] having no 3-sequences and having k successions (0 <= k <= floor(n/2)); a succession of a permutation p is a position i such that p(i +1) - p(i) = 1. A180185

Numbers n such that n!!! is an interprime. A74165