Properties of the Number -16145

Sixteen Thousand One Hundred Forty-Five

Basics

Value: -16146 → -16145 → -16144

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 5 × 3229

Divisors: 1, 5, 3229, 16145

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11111100010001

Octal: -37421

Duodecimal: -9415

Hexadecimal: -3f11

Square: 260661025

Square Root: 127.06297651164952

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) = ∑_k=1..n gcd(k, n)³. A343497

Array read by antidiagonals: T(n,m) is the number of acyclic edge sets in the complete bipartite graph K_n,m. A328887

Expansion of e.g.f. exp(-x) / (2 - exp(4·x)). A367981

Number of distinct sums of subsets of the first n squares {1,4,9,...,n²}. A208531

Number of compositions of 2n into n parts where differences between neighboring parts are in {-1,1}. A364529

Schoenheim bound L₁(n,n-5,n-6). A36837

a(n) = (binomial(n,5) - floor(n/5)) / 5. A215052

Number of distinct row and column sums for n X n (0, 1)-matrices. A297077

a(n) = smallest composite (odd) number greater than a(n-1) such that a(n)+2n is the first prime after a(n). A189118

Semiprimes p·q such that p·q+p+q, p·q-(p+q), p·q+2*(p+q) and p·q-2*(p+q) are all primes. A356765