Properties of the Number 90156

Ninety Thousand One Hundred Fifty-Six

Basics

Value: 90155 → 90156 → 90157

Parity: even

Prime: No

Previous Prime: 90149

Next Prime: 90163

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 11 × 683

Divisors: 1, 2, 3, 4, 6, 11, 12, 22, 33, 44

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10110000000101100

Octal: 260054

Duodecimal: 44210

Hexadecimal: 1602c

Square: 8128104336

Square Root: 300.25988743087214

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

Number of (0,1) matrices with n ones and no zero rows or columns, up to row and column permutations. A49311

Number of n-isohedral edge-to-edge tilings of regular polygons. A268184

Irregular triangle read by rows: T(n, k) is the number of k-element proper ideals of the n-dimensional Boolean lattice, with 0 < k < 2ⁿ. A269699

Primes of the form identical digits preceded by an 8. A90156

Let L_k(n) denote the number of elements of rank k in the free distributive lattice on n generators. Sequence gives irregular triangle, read by rows, showing coefficients when L_k(n) is expressed as a linear combination of binomial(n,i) for 0 <= i <= k-1. A316836