Properties of the Number 78625

Seventy-Eight Thousand Six Hundred Twenty-Five

Basics

Value: 78624 → 78625 → 78626

Parity: odd

Prime: No

Previous Prime: 78623

Next Prime: 78643

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 5 ³ × 17 × 37

Divisors: 1, 5, 17, 25, 37, 85, 125, 185, 425, 629

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011001100100001

Octal: 231441

Duodecimal: 39601

Hexadecimal: 13321

Square: 6181890625

Square Root: 280.40149785619906

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 permutations σ such that σ⁵=Id; degree-n permutations of order dividing 5. A52501

Numbers n that are the hypotenuse of exactly 31 distinct integer-sided right triangles, i.e., n² can be written as a sum of two squares in 31 ways. A97244

Number of elements of GF(5ⁿ) with trace 0 and subtrace 0. A74006

Array read by rows: T(n,k) is the number of solutions to the equation ∑_i=1..n x_i² == k (mod 5) with x_i in 0..4, where n >= 0 and 0 <= k <= 4. A330607

Number of strings of length n over Z₅ with trace 0 and subtrace 0. A73963

Number of strings of length n over Z₅ with trace 1 and subtrace 1. A73967

Number of elements of GF(5ⁿ) with trace 1 and subtrace 1. A74010

Integer nearest to Li(10ⁿ) - Li(3), where Li(x) = integral(0..x, dt/log(t)). A223166

Numbers m > 1 such that every prime divisor p of m satisfies s_p(m) = p. A324458

Numbers that are the sum of 2 nonzero squares in 7 or more ways. A25298