Properties of the Number -613121

Six Hundred Thirteen Thousand One Hundred Twenty-One

Basics

Value: -613122 → -613121 → -613120

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 83 ² × 89

Divisors: 1, 83, 89, 6889, 7387, 613121

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10010101101100000001

Octal: -2255401

Duodecimal: -256995

Hexadecimal: -95b01

Square: 375917360641

Square Root: 783.0204339606981

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

a(n) = (p_n)² * p_n+1, where p_n is the n-th prime, A000040(n). A251720

G.f. A(x) = F(0,x) where F(0,x) = 1/(1 - x·F(1,x)), F(1,x) = 1/(1 - (2·x*F(2,x))²)^1/2, F(2,x) = 1/(1 - (3·x*F(3,x))³)^1/3, ..., so that F(n-1,x)ⁿ = 1/(1 - (n·x*F(n,x))ⁿ) for n>=0. A243161

Numbers n such that the sum of composites from the smallest prime factor of n to the largest prime factor of n is equal to the sum of squarefree numbers from the smallest prime factor of n to the largest prime factor of n. A74255