Properties of the Number 99979

Ninety-Nine Thousand Nine Hundred Seventy-Nine

Basics

Value: 99978 → 99979 → 99980

Parity: odd

Prime: No

Previous Prime: 99971

Next Prime: 99989

Digit Sum: 43

Digital Root: 7

Palindrome: No

Factorization: 11 × 61 × 149

Divisors: 1, 11, 61, 149, 671, 1639, 9089, 99979

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: 11000011010001011

Octal: 303213

Duodecimal: 49A37

Hexadecimal: 1868b

Square: 9995800441

Square Root: 316.19456035801755

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

Moving the rightmost digit of a number to place it furthest to the left adds 18 to the number. A363823

a(n) is the largest n-digit palindrome that is the product of two numbers having an equal number of digits, or 0 if no such palindrome exists. A308803

Bisection of A001157: sigma₂(2n). A99979

Integers n such that 10ⁿ-21 is a prime number. A108327

Number of upper Wythoff primes (A095281) in range ]2ⁿ,2ⁿ⁺¹]. A95291