Properties of the Number -172421

One Hundred Seventy-Two Thousand Four Hundred Twenty-One

Basics

Value: -172422 → -172421 → -172420

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 172421

Divisors: 1, 172421

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101010000110000101

Octal: -520605

Duodecimal: -83945

Hexadecimal: -2a185

Square: 29729001241

Square Root: 415.2360774306587

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

Prime numbers p such that x² + x + p produces primes for x = 0..4 but not x = 5. A210363

Primes p such that the differences between the 5 consecutive primes starting with p are (2,4,6,6). A78947

Lesser of twin self primes, i.e., smaller member of the pair of self primes differing by 2. A380713

Expansion of 1/(1-x²-x³-x⁴-x⁵-x⁶-x⁷-x⁸-x⁹). A13986