Properties of the Number -157609

One Hundred Fifty-Seven Thousand Six Hundred Nine

Basics

Value: -157610 → -157609 → -157608

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 397 ²

Divisors: 1, 397, 157609

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100110011110101001

Octal: -463651

Duodecimal: -77261

Hexadecimal: -267a9

Square: 24840596881

Square Root: 397

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

Composite numbers k such that the sum of the divisors of k² is a prime. A65405

Discriminants with exactly 1 associated cyclic cubic field. A343022

a(n) = x² = A090116(n)² is the least square that is "surrounded" by two closest primes, by prevprime(x²) and nextprime(x²) whose difference nextprime - prevprime = 2n. A90117

Final terms of rows of A077346. A77347

σ(n)-n is a perfect square associated with A049226. A49228

Squares which have one or more occurrences of exactly six different digits. A235721

Smallest square containing n-th prime as substring. A29945

Squares of the form 6p+7 for p prime (A110015) that are squares of a prime. A110586

Number of (w,x,y,z) with all terms in {1,...,n} and w<2x and y<2z. A212503

Nontrivial prime powers (A025475) which are a sum of a smaller nontrivial prime power and a perfect cube. A226232