Properties of the Number -2530

Five Hundred Thirty

Basics

Value: -2531 → -2530 → -2529

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 2 × 5 × 11 × 23

Divisors: 1, 2, 5, 10, 11, 22, 23, 46, 55, 110

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100111100010

Octal: -4742

Duodecimal: -156A

Hexadecimal: -9e2

Square: 6400900

Square Root: 50.299105359837164

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

Expansion of g.f. (2·x³ + 5) / ( -x⁵ + x³ + 1). A136598

a(n) = binomial(5·n, n)/(4·n + 1). A2294

Number of combinations which can be taken from the integer partitions of n. Total number of cases in the (n,m)-fragmentation process. A122768

Numbers k for which 10k+1, 10k+3, 10k+7 and 10k+9 are primes. A7811

Primitive abundant numbers (abundant numbers all of whose proper divisors are deficient numbers). A71395

Number of rooted simplicial 3-polytopes with n+3 nodes; or rooted 3-connected triangulations with 2n+2 faces; or rooted 3-connected trivalent maps with 2n+2 vertices. A260

a(1)=1, a(n) = n·a(floor(n/2)). A98844

Primitive nondeficient numbers. A6039

Numbers k such that k² divides 9^k - 1. A127101

a(n) = n*(n + 1)*(5·n - 4)/2. A237616