Properties of the Number 1568

One Thousand Five Hundred Sixty-Eight

Basics

Value: 1567 → 1568 → 1569

Parity: even

Prime: No

Previous Prime: 1567

Next Prime: 1571

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ⁵ × 7 ²

Divisors: 1, 2, 4, 7, 8, 14, 16, 28, 32, 49

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 11000100000

Octal: 3040

Duodecimal: AA8

Hexadecimal: 620

Square: 2458624

Square Root: 39.59797974644666

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

a(n) = 2·n². A1105

Powerful numbers (A001694) that are not prime powers (A000961). A286708

a(n) = n*σ(n). A64987

Sequence and first differences (A030124) together list all positive numbers exactly once. A5228

Achilles numbers - powerful but imperfect: if n = Product(p_i^e_i) then all e_i > 1 (i.e., powerful), but the highest common factor of the e_i is 1, i.e., not a perfect power. A52486

Triangle of coefficients of Laguerre polynomials n!*L_n(x) (rising powers of x). A21009

Numbers that are divisible by exactly 7 primes counting multiplicity. A46308

Numbers k such that the k-th composition in standard order is strictly increasing. A333255

Numbers which are the sum of 3 nonzero 4th powers. A3337

Numbers n such that n³² + 1 is prime. A6315