Properties of the Number -260649

Two Hundred Sixty Thousand Six Hundred Forty-Nine

Basics

Value: -260650 → -260649 → -260648

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 28961

Divisors: 1, 3, 9, 28961, 86883, 260649

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111111101000101001

Octal: -775051

Duodecimal: -106A09

Hexadecimal: -3fa29

Square: 67937901201

Square Root: 510.53795157656987

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

Triangle read by rows: T(i,j) for the recurrence T(i,j) = (T(i-1,j) + 1)*i. A121662

Triangle read by rows: T(m,n) = ∑_i=1..n P(m,i) where P(m,n) = m!/(m-n)! is the number of permutations of m items taken n at a time, for 1 <= n <= m. A285268

a(n) = n*( a(n-1)+1 ), initialized by a(1) = -1. A224869