Properties of the Number -68153

Sixty-Eight Thousand One Hundred Fifty-Three

Basics

Value: -68154 → -68153 → -68152

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 17 × 19 × 211

Divisors: 1, 17, 19, 211, 323, 3587, 4009, 68153

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -10000101000111001

Octal: -205071

Duodecimal: -33535

Hexadecimal: -10a39

Square: 4644831409

Square Root: 261.061295484413

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

This table (read by rows) shows the coefficients of sum formulas of n-th subfactorial numbers (A000166). The n-th row (n>=1) contains T(i,n) for i=1 to n, where T(i,n) satisfies Subf(n) = ∑_i=1..n T(i,n) * n^n-i. A101559

Numbers n=2·k-1 where ∑_j=1..k (-1)^j+1 * d(2·j-1) achieves a new record, with d(n) = number of divisors of n (A000005). A318737

a(n) = sum of all divisors of all numbers k such that n² <= k < (n+1)². A168012