Properties of the Number -164737

One Hundred Sixty-Four Thousand Seven Hundred Thirty-Seven

Basics

Value: -164738 → -164737 → -164736

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 257 × 641

Divisors: 1, 257, 641, 164737

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: Yes

Tetrahedral: No

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Representations

Binary: -101000001110000001

Octal: -501601

Duodecimal: -7B401

Hexadecimal: -28381

Square: 27138279169

Square Root: 405.8780605058618

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

Squarefree products of factors of Fermat numbers (A023394). A94358

a(n) = ChebyshevT(4, n). A144130

Chebyshev sequence T(n,12) with Diophantine property. A77424

a(n) = T(n, 3·n), where T(n, x) is the Chebyshev polynomial of the first kind. A349072

Numbers k such that 2^k-1 == 1 (mod k) and p-1 does not divide k-1 for every prime p dividing k. A316907

a(n) = 648·n² - 72·n + 1. A154514

a(n) = 10368·n² - 288·n + 1. A157288

a(n) = 128·n² + 2528·n + 12481. A157436

a(n) = 2048·n² - 128·n + 1. A157448

Heptagonal numbers (A000566) that are semiprimes (A001358). A259676