Properties of the Number 64870

Sixty-Four Thousand Eight Hundred Seventy

Basics

Value: 64869 → 64870 → 64871

Parity: even

Prime: No

Previous Prime: 64853

Next Prime: 64871

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 × 5 × 13 × 499

Divisors: 1, 2, 5, 10, 13, 26, 65, 130, 499, 998

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111110101100110

Octal: 176546

Duodecimal: 3165A

Hexadecimal: fd66

Square: 4208116900

Square Root: 254.6958971008367

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 of equivalence classes of compositions of n where two compositions a,b are considered equivalent if the summands of a can be permuted into the summands of b with an even number of transpositions. A218004

Starting positions of strings of four 6's in the decimal expansion of π. A83626

The minimal number which has multiplicative persistence 6 in base n. A64870

Number of (n+1) X (2+1) 0..2 arrays colored with the difference of the upper median and the lower median in each 2 X 2 subblock. A236029