Properties of the Number -131213

One Hundred Thirty-One Thousand Two Hundred Thirteen

Basics

Value: -131214 → -131213 → -131212

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 131213

Divisors: 1, 131213

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -100000000010001101

Octal: -400215

Duodecimal: -63B25

Hexadecimal: -2008d

Square: 17216851369

Square Root: 362.2333502039811

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

Primes formed from the concatenation of n, n-1 and n for some n > 0. A68659

a(n) is the smallest prime greater than 2ⁿ such that 2 is a primitive root modulo a(n). A250396

Primes arising in A036976. A36977

Primes arising in A036978. A36979

Primes in A002049. A185846

Primes of the form abcdabcd..abcdab. A187114

Primes of the form 5n² - 7. A201788

Prime numbers whose binary expansion contains only prime powers of 2 and the zeroth power. A342475

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 55. A31643