Properties of the Number -15889

Fifteen Thousand Eight Hundred Eighty-Nine

Basics

Value: -15890 → -15889 → -15888

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 15889

Divisors: 1, 15889

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11111000010001

Octal: -37021

Duodecimal: -9241

Hexadecimal: -3e11

Square: 252460321

Square Root: 126.05157674539419

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

Balanced primes of order five. A96697

Primes p = prime(i) of level (1,3), i.e., such that A118534(i) = prime(i-3). A118467

Primes p such that A001175(p) = (p-1)/8. A308793

Primes p such that A001177(p) = (p-1)/8. A308801

Consider all ways of writing a number as p+2m² where p is 1 or a prime and m >= 0; sequence gives numbers that are expressible in at least 2 more ways than any smaller number. A16067

Primes of the form k² + 13. A138375

a(0) = 12, after which, if (2·a(n-1)) - 1 = ∏_{k >= 1} (p_k)^c_k then a(n) = ∏_{k >= 1} (p_k-1)^c_k, where p_k indicates the k-th prime, A000040(k). A246343

Primes p of the form |prime(n+2)²-prime(n+1)²-prime(n)²|, (absolute values). A176134

Upper twin primes of upper twin prime index. A88463

Lesser prime factor of semiprimes in A089542. A89543