Properties of the Number 78991

Seventy-Eight Thousand Nine Hundred Ninety-One

Basics

Value: 78990 → 78991 → 78992

Parity: odd

Prime: No

Previous Prime: 78989

Next Prime: 79031

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 11 × 43 × 167

Divisors: 1, 11, 43, 167, 473, 1837, 7181, 78991

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10011010010001111

Octal: 232217

Duodecimal: 39867

Hexadecimal: 1348f

Square: 6239578081

Square Root: 281.0533757135822

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, k) is the k-th number b > 1 such that b^prime(n+i-1) == 1 (mod prime(n+i)²) for each i = 0..2, with k running over the positive integers; square array, read by antidiagonals, downwards. A319060

Coefficients of the polynomials in the numerator of the generating function x/(1-x-x²) for the Fibonacci sequence and its successive derivatives starting with the highest power of x. A78991