Properties of the Number 91379

Ninety-One Thousand Three Hundred Seventy-Nine

Basics

Value: 91378 → 91379 → 91380

Parity: odd

Prime: No

Previous Prime: 91373

Next Prime: 91381

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 23 × 29 × 137

Divisors: 1, 23, 29, 137, 667, 3151, 3973, 91379

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110010011110011

Octal: 262363

Duodecimal: 44A6B

Hexadecimal: 164f3

Square: 8350121641

Square Root: 302.2895962483658

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) = largest m such that the harmonic number H(m)= ∑_i=1..m 1/i is < n. A115515

1 followed by the union of the terms > 2 in A002387 (or A004080) and A115515. A242654

Truncated dodecahedron, and truncated icosahedron with faces of centered polygons. A193248

Least n such that H(n) is closer to an integer than any H(j) with j < n; where H(n) is the harmonic number ∑_i=0..n 1/i. A87460

Numbers k such that if 1 <= j < k then the fractional part of the k-th partial sum of the harmonic series > the fractional part of the j-th partial sum of the harmonic series. A4980

a(n) = ∏_{p | n} (1 + Legendre(-1,p) ). A91379