Properties of the Number 64520

Sixty-Four Thousand Five Hundred Twenty

Basics

Value: 64519 → 64520 → 64521

Parity: even

Prime: No

Previous Prime: 64513

Next Prime: 64553

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ³ × 5 × 1613

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 1613, 3226

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1111110000001000

Octal: 176010

Duodecimal: 31408

Hexadecimal: fc08

Square: 4162830400

Square Root: 254.00787389370433

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 T(n,k) of colored integer partitions of n using all colors of a k-set such that all parts have different color patterns and a pattern for part i has i distinct colors in increasing order; triangle T(n,k), n>=0, min(j:A001787(j)>=n)<=k<=n, read by rows. A326914

Irregular triangle read by rows: T(n,k) = number of unsigned unichromosonal genomes with n genes at 3-break distance k from a fixed genome, 0 <= k <= floor(n/2). A264614

MacMahon's solid partitions of n in which 2 is the smallest summand. A2043

Totient numbers where a record gap appears in the list (A002202). A392633

Number of ways of numbering the faces of a cube with nonnegative integers so that the sum of the 6 numbers is n. A54473

Number of connected minimal dominating sets in the n X n torus grid graph. A295429

Number T(n,k) of colored integer partitions of n using all colors of a k-set such that all parts have different color patterns and a pattern for part i has i distinct colors in increasing order; triangle T(n,k), k>=0, k<=n<=k·2^k-1, read by columns. A326962

a(n) = + 1 - 2 - 3 + 4 + 5 + 6 - 7 - 8 - 9 - 10 + 11 + 12 + 13 + 14 + 15 - ... + (+-1)*n, where there is one plus, two minuses, three pluses, etc. (see A002024). A64520