Properties of the Number 99988

Ninety-Nine Thousand Nine Hundred Eighty-Eight

Basics

Value: 99987 → 99988 → 99989

Parity: even

Prime: No

Previous Prime: 99971

Next Prime: 99989

Digit Sum: 43

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 7 × 3571

Divisors: 1, 2, 4, 7, 14, 28, 3571, 7142, 14284, 24997

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000011010010100

Octal: 303224

Duodecimal: 49A44

Hexadecimal: 18694

Square: 9997600144

Square Root: 316.2087917816328

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) = smallest multiple of 4 with sum of digits = n. A77489

Numbers n such that n and its 10's complement are both admirable numbers, i.e., n and 10^k - n where k is the number of digits in n are admirable. A110019

Bisection of lucky numbers, A000959. A99988

Number of primes in the neighborhood of 10ⁿ with radius ceiling(log(10ⁿ)). A96836

Numbers that contain exactly one pair of identical digits·and a triple of identical digits y (x not equal y). A291312