Properties of the Number -425040

Four Hundred Twenty-Five Thousand Forty

Basics

Value: -425041 → -425040 → -425039

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 ⁴ × 3 × 5 × 7 × 11 × 23

Divisors: 1, 2, 3, 4, 5, 6, 7, 8, 10, 11

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1100111110001010000

Octal: -1476120

Duodecimal: -185B80

Hexadecimal: -67c50

Square: 180659001600

Square Root: 651.9509183980033

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

Numbers n such that the multiplicative group modulo n is the direct product of 7 cyclic groups. A272597

a(n) = denominator(∑_k=1..n 1/(prime(k)-1)). A128646

Numbers with prime factorization pqrstu⁴. A190388

Primitive 4-abundant numbers: Numbers k such that σ(k) > 4k (A068404) all of whose proper divisors d are 4-deficient numbers (having σ(d) < 4d). A307114

a(n) = n! * ∑_{k=0..floor(n/2)} k^{n - 2·k}/k!. A345747

a(n) = denominator(∑_k=1..n (-1)^k+1/(prime(k)-1)). A128648

a(n) = 10·binomial(n+4, 5). A266732

a(n) = denominator of ∑_{1 <= i < j <= d(n)} 1/(d_j - d_i), sum over ordered pairs of divisors of n, where d(n) is the number of divisors of n. A330078

Primitive terms of A023198: numbers k with the property σ(k)/k >= 4 that are not divisible by any other number with that property. A392936

Denominators of r(n) := ∑_k=0..n-1 1/∏_j=0..4 (k + j + 1), for n >= 0, with r(0) = 0. A300299