Properties of the Number -91390

Ninety-One Thousand Three Hundred Ninety

Basics

Value: -91391 → -91390 → -91389

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 5 × 13 × 19 × 37

Divisors: 1, 2, 5, 10, 13, 19, 26, 37, 38, 65

Polygonal

Triangular: No

Square: No

Pentagonal: Yes

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10110010011111110

Octal: -262376

Duodecimal: -44A7A

Hexadecimal: -164fe

Square: 8352132100

Square Root: 302.30779017418655

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

Binomial coefficient binomial(n,4) = n*(n-1)*(n-2)*(n-3)/24. A332

Number of compositions of n into 5 ordered relatively prime parts. A743

Binomial coefficients C(2·n+4,4). A53134

Doubly pentagonal numbers: a(n) = n*(3·n-2)*(3·n-1)*(3·n+1)/8. A232713

Square table, read by antidiagonals, where T(n,k) = C((n+1)*2^k-1, k) for n>=0, k>=0. A136462

Binomial coefficient C(8n, n-1). A4382

Binomial coefficient C(n,36). A10989

a(n) = lcm(n, n+1, n+2, n+3)/12. A67047

Triangle, read by rows, where T(n,k) = C( n*(n+1)/2 + n-k, n-k), for n>=k>=0. A121334

List of numbers that are both pentagonal (A000326) and binomial coefficients C(n,4) (A000332). A145920