Properties of the Number -23002

Twenty-Three Thousand Two

Basics

Value: -23003 → -23002 → -23001

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 7

Digital Root: 7

Palindrome: No

Factorization: 2 × 7 × 31 × 53

Divisors: 1, 2, 7, 14, 31, 53, 62, 106, 217, 371

Polygonal

Triangular: No

Square: No

Pentagonal: Yes

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101100111011010

Octal: -54732

Duodecimal: -1138A

Hexadecimal: -59da

Square: 529092004

Square Root: 151.66410254242763

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

Multiples of 7 whose sum of digits is equal to 7. A63416

Base-3 Keith numbers. A188195

Number of permutations of length n which avoid the patterns 321, 2143, 3124; or avoid the patterns 132, 2314, 4312, etc. A116731

Pentagonal numbers (A000326) which are the sum of 2 other positive pentagonal numbers. A136117

Least number k having n representations as the sum of the minimal number of biquadrates A002377(k). A185673

Numbers k such that k = x + y, sigma₁(k) = sigma₁(x) + sigma₁(y) and sigma₂(k) = sigma₂(x) + sigma₂(y). A219033

Pentagonal numbers that are also Niven numbers. A242043

Sequence of sums based on primes = 7 mod 8. A60108

Number of permutations of floor(i·9/8), i=0..n-1, with all sums of 2 through 4 adjacent terms respectively unique. A147907

Number of permutations of floor(i·9/8), i=0..n-1, with all sums of 2 through 5 adjacent terms respectively unique. A147916