Properties of the Number -260642

Two Hundred Sixty Thousand Six Hundred Forty-Two

Basics

Value: -260643 → -260642 → -260641

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 19 ⁴

Divisors: 1, 2, 19, 38, 361, 722, 6859, 13718, 130321, 260642

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8109 Try Today's Challenge

Representations

Binary: -111111101000100010

Octal: -775042

Duodecimal: -106A02

Hexadecimal: -3fa22

Square: 67934252164

Square Root: 510.5310960166873

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

Numbers with 5 odd divisors. A267696

Sum of two powers of 19. A73214

a(n) = ∑_k=0..n G(n)/(G(k)*G(n-k)) where G(n) = ∏_k=0..n k!. A193520

a(n) = ∑_d∣n max(d, n/d)⁴. A297843

a(n) = n⁴/8 if n is even, a(n) = (n²-1)²/8 if n is odd. A212892

a(n) = 2·n⁴. A244730

Numbers n that can be written as both the sum of two nonzero fourth powers and the sum of three nonzero fourth powers. A336536

a(n) = 2·prime(n)⁴. A172191

Numbers k that divide 5^k + 3^k + 2^k. A220170

Terms m of A003337 such that m+1 is also in A003337. I.e., smaller one of two consecutive numbers, both equal to a sum of three 4th powers. A85322