Properties of the Number 91226

Ninety-One Thousand Two Hundred Twenty-Six

Basics

Value: 91225 → 91226 → 91227

Parity: even

Prime: No

Previous Prime: 91199

Next Prime: 91229

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 45613

Divisors: 1, 2, 45613, 91226

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10110010001011010

Octal: 262132

Duodecimal: 44962

Hexadecimal: 1645a

Square: 8322183076

Square Root: 302.0364216448076

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

Array read by upwards antidiagonals: T(m,n) = number of set partitions of the multiset consisting of one copy each of x₁, x₂, ..., x_m, and two copies each of y₁, y₂, ..., y_n, for m >= 0, n >= 0. A322765

a(n) = 6·binomial(n,4) + 5·binomial(n,2) - 4·n + 5. A66455

Number of partitions of the (n+4)-multiset {1,2,...,n,1,2,3,4}. A346881

Number of partitions of the (n+7)-multiset {1,2,...,n,1,2,...,7}. A346884

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 24. A31612

Number of irreducible GF(2)[X]-polynomials in range [0,n]. A91226

Number A(n,k) of partitions of the (n+k)-multiset {1,2,...,n,1,2,...,k}; square array A(n,k), n>=0, k>=0, read by antidiagonals. A346500