Properties of the Number 99905

Ninety-Nine Thousand Nine Hundred Five

Basics

Value: 99904 → 99905 → 99906

Parity: odd

Prime: No

Previous Prime: 99901

Next Prime: 99907

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 5 × 13 × 29 × 53

Divisors: 1, 5, 13, 29, 53, 65, 145, 265, 377, 689

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000011001000001

Octal: 303101

Duodecimal: 49995

Hexadecimal: 18641

Square: 9981009025

Square Root: 316.07752213657966

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

Numbers k that are the hypotenuse of exactly 40 distinct integer-sided right triangles, i.e., k² can be written as a sum of two squares in 40 ways. A97282

RMS values of the RMS numbers: a(n) is the root mean square of the divisors of A140480(n). A141812

Positive numbers y such that y² is of the form x²+(x+41)² with integer x. A157257

Numbers that are the sum of 2 nonzero squares in 7 or more ways. A25298

Numbers that are the sum of 2 nonzero squares in 8 or more ways. A25299

Numbers that are the sum of 2 distinct nonzero squares in 7 or more ways. A25317

Numbers that are the sum of 2 distinct nonzero squares in 8 or more ways. A25318

Numbers that are the sum of 2 nonzero squares in exactly 8 ways. A25291

Numbers n that are the product of four distinct odd primes and x² + y² = n has integer solutions. A264499

a(n) is the smallest centered n-gonal number with exactly n distinct prime factors. A358894