Properties of the Number 93989

Ninety-Three Thousand Nine Hundred Eighty-Nine

Basics

Value: 93988 → 93989 → 93990

Parity: odd

Prime: No

Previous Prime: 93983

Next Prime: 93997

Digit Sum: 38

Digital Root: 2

Palindrome: No

Factorization: 7 × 29 × 463

Divisors: 1, 7, 29, 203, 463, 3241, 13427, 93989

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10110111100100101

Octal: 267445

Duodecimal: 46485

Hexadecimal: 16f25

Square: 8833932121

Square Root: 306.57625478826634

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) = A000217(A000217(n))-n². A86602

Numbers k such that k and k² use only the digits 1, 2, 3, 8 and 9. A136984

Triangle, read by rows, T(n, k) = ∑_j=0..k (-1)^j*(k-j+1)ⁿ*binomial(n+1, j) *binomial(n+2, j)/(j+1). A176124

Triangle read by rows: first define the Narayana numbers: Y(n,m)=Binomial[n, m]*Binomial[n + 1, m + 1]/(n - m + 1); then t(n,m)=Sum[(-1)^j *Y(n + 1, j)*(k + 1 - j)ⁿ, {j, 0, k + 1}]. A155796

Number of free n-celled polyzebras (or zebra-move-connected polyominoes). A93989