Properties of the Number -2653

Six Hundred Fifty-Three

Basics

Value: -2654 → -2653 → -2652

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 7 × 379

Divisors: 1, 7, 379, 2653

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101001011101

Octal: -5135

Duodecimal: -1651

Hexadecimal: -a5d

Square: 7038409

Square Root: 51.507281038703645

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

Irregular triangle read by rows: coefficients of Olinde Rodrigues recursive polynomial for inversions of permutations applied to Bonnaci type polynomials: x - 1, x² - x - 1, x³ - x² - x - 1, etc. A133333

Triangle read by rows: T(n,m) = ∑_k=0..n StirlingS2(n, k) * Eulerian(n - k + 1, m) *(-1)^{n - k - m} * k!. A174553

Central polygonal numbers: a(n) = n² - n + 1. A2061

Number of integer partitions of n of which every permutation has a consecutive monotone triple, i.e., a triple (..., x, y, z, ...) such that either x <= y <= z or x >= y >= z. A344654

a(n) = 4·n² - 10·n + 7. A54554

Fifth subdiagonal in array of n-gonal numbers A081422. A81436

Expansion of 1/((1+3·x)*(1-4·x)). A53404

Numbers n such that fractional part of e^π*sqrt(n) > 0.99. A35484

Numbers n such that n!10 + 2 is prime. A204657

Weak Goodstein sequence starting at 11. A137411