Properties of the Number -2318

Three Hundred Eighteen

Basics

Value: -2319 → -2318 → -2317

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 × 19 × 61

Divisors: 1, 2, 19, 38, 61, 122, 1159, 2318

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100100001110

Octal: -4416

Duodecimal: -1412

Hexadecimal: -90e

Square: 5373124

Square Root: 48.14561246884289

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) = ∑_d∣n (-1)^d-1*d². A321543

(Integer nearest R(10ⁿ)) - π(10ⁿ), where π(x) is the number of primes <= x, R(x) = ∑_k>=1 (μ(k)/k·li(x^1/k)) and li(x) is the Cauchy principal value of the integral from 0 to·of dt/log(t). A57794

Expansion of f(x)³ * f(-x²) * χ(x³)³ in powers of·where χ(), f() are Ramanujan θ functions. A280384

Expansion of ∏_k>=1 1/(1 + x^k)^k-1. A319109

Numbers obtained by reinterpreting base-2 representation of n in primorial base: a(0) = 0, a(2n) = A276154(a(n)), a(2n+1) = 1 + A276154(a(n)). A276156

Number of twice-partitions of type (Q,P,Q) and weight n. A279790

T(n,m) = number of 1..m integer arrays v[1..n] of length n with all autocorrelation values sum(i){v[i]*v[i-k]} distinct for k in 0..n-1. A171275

Numbers that are the sum of 5 positive 7th powers. A3372

Greatest number of multisets that can be obtained by choosing a divisor of each part of an integer partition of n. A370808

Numbers that are the sum of 8 positive 6th powers. A3364