Properties of the Number -27689

Twenty-Seven Thousand Six Hundred Eighty-Nine

Basics

Value: -27690 → -27689 → -27688

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 27689

Divisors: 1, 27689

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110110000101001

Octal: -66051

Duodecimal: -14035

Hexadecimal: -6c29

Square: 766680721

Square Root: 166.4001201922643

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

Initial term in sequence of four consecutive primes separated by 3 consecutive differences each <=6 (i.e., when d=2,4 or 6) and forming d-pattern=[2,6,4]; short d-string notation of pattern = [264]. A78848

Primes of the form i·prime(i) + (i+1)*prime(i+1). A119487

Primes of form n² + 10000. A256838

a(n) = 25·n² - 36·n + 13. A154355

Primes with digit sum = 32. A106768

Lesser of twin primes p1 such that p1+(p2²-p1²) and p2+(p2²-p1²) are prime numbers. A174922

Index where prime(n) appears as a term in A379442. A379558

Smallest prime p == 1 (mod 8) such that Q(sqrt(p)) has class number 2n+1. A355876

a(n) = (5·n + 1)² + 4·n + 1. A7533

Smallest member of a pair of consecutive twin prime pairs that have three primes between them. A89635