Properties of the Number 99971

Ninety-Nine Thousand Nine Hundred Seventy-One

Basics

Value: 99970 → 99971 → 99972

Parity: odd

Prime: Yes

Previous Prime: 99961

Next Prime: 99989

Digit Sum: 35

Digital Root: 8

Palindrome: No

Factorization: 99971

Divisors: 1, 99971

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000011010000011

Octal: 303203

Duodecimal: 49A2B

Hexadecimal: 18683

Square: 9994200841

Square Root: 316.181909665939

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) is the largest prime < 10ⁿ that is the sum of at least two consecutive primes. A342443

Primes p such that 5·p - 6 is square. A110482

Prime numbers p such that primepi(p) + p is a square. A104269

Write (sqrt(5)-1)/2 as a binary fraction; read this from left to right and whenever a 1 appears, note the integer formed by reading leftwards from that 1. A99971

Integers k such that 10^k - 29 is a prime number. A108330

a(n) is the smallest number of consecutive primes that are necessary to add to obtain the largest prime = A342443(n) < 10ⁿ. A342444

List of pairs of amicable numbers (m, n) with record value of m/n. A287026

Number of A095283-primes in range ]2ⁿ,2ⁿ⁺¹]. A95293

Numbers n such that n⁵ - prime(n) is prime. A213535

List of pairs of unitary amicable numbers (m, n) with record value of m/n. A292019