Properties of the Number 99721

Ninety-Nine Thousand Seven Hundred Twenty-One

Basics

Value: 99720 → 99721 → 99722

Parity: odd

Prime: Yes

Previous Prime: 99719

Next Prime: 99733

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 99721

Divisors: 1, 99721

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 11000010110001001

Octal: 302611

Duodecimal: 49861

Hexadecimal: 18589

Square: 9944277841

Square Root: 315.7863201596928

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

T(n,k)=Number of nXk binary arrays without the pattern 0 1 0 antidiagonally or horizontally. A189064

Arrange digits of cubes in descending order. A32554

Highly Wilsonian primes: smallest primes p such that w(p)=n where w(n) denote the number of nonnegative integers k such that k! = +1 or -1 (mod n). A71710

Primes p such that q = p² - 2, r = q² - 2 and s = r² - 2 are also prime. A257552

Primes p such that number of primes produced according to rules stipulated in Honaker's A048853 is 1. A50663

Reverse digits of largest primes, append to sequence if result is larger prime then previous one with reverse digits. A98922

Number of nX5 binary arrays without the pattern 0 1 0 antidiagonally or horizontally. A189060

Number of 4Xn binary arrays without the pattern 0 1 0 antidiagonally or horizontally. A189066

Number of iterations used by a 2D cutting stock problem related algorithm. A90380

a(n) = n⁵ - 31·n + 31, with n·a(n) + n*( n - 1 )*31 = n⁶. A107255