Properties of the Number -7427

Four Hundred Twenty-Seven

Basics

Value: -7428 → -7427 → -7426

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 7 × 1061

Divisors: 1, 7, 1061, 7427

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1110100000011

Octal: -16403

Duodecimal: -436B

Hexadecimal: -1d03

Square: 55160329

Square Root: 86.18004409374598

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

Number of partitions of n into an even number of parts. A27187

One half of number of non-self-conjugate partitions; also half of number of asymmetric Ferrers graphs with n nodes. A701

Number of integer partitions of n with reverse-alternating sum < 0. A344608

Number of partitions of 2n+1 of type OO (see Comments). A236914

G.f. A(x) = ∑_n=-oo..+oo xⁿ * (1 + xⁿ)^2·n. A260147

The number of seconds after midnight corresponding to prime time primes, i.e., primes of the form HMMSS with primes H < 24 and MM, SS < 60, cf. A295013. A295003

The number of seconds after midnight (3600·H + 60·MM + SS) corresponding to prime time numbers A295014, i.e., numbers of the form HMMSS with primes H < 24 and MM, SS < 60. A295004

Cube root of A030697. A30698

Indices of primes in sequence defined by A(0) = 37, A(n) = 10·A(n-1) - 3 for n > 0. A101840

Number of lines through at least 2 points of a 4 X n grid of points. A160844