Properties of the Number 81098

Eighty-One Thousand Ninety-Eight

Basics

Value: 81097 → 81098 → 81099

Parity: even

Prime: No

Previous Prime: 81097

Next Prime: 81101

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 × 23 × 41 × 43

Divisors: 1, 2, 23, 41, 43, 46, 82, 86, 943, 989

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10011110011001010

Octal: 236312

Duodecimal: 3AB22

Hexadecimal: 13cca

Square: 6576885604

Square Root: 284.7771058213774

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 stacks, or planar partitions of n; also number of weakly unimodal compositions of n. A1523

Sum of all odd-indexed parts minus the sum of all even-indexed parts of all partitions of n, with the parts written in nondecreasing order. A194714

T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 1 3 6 or 8. A252628

Bisection of A001523. A100505

Number of (n+2)X(1+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 1 3 6 or 8. A252623

Number of (n+2)X(3+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 1 3 6 or 8. A252625

Expansion of (1-x)/(1+x-x²-2·x³). A78041

Atomic numbers of the chemical elements sorted with respect to melting point. A81098