Properties of the Number 78475

Seventy-Eight Thousand Four Hundred Seventy-Five

Basics

Value: 78474 → 78475 → 78476

Parity: odd

Prime: No

Previous Prime: 78467

Next Prime: 78479

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 5 ² × 43 × 73

Divisors: 1, 5, 25, 43, 73, 215, 365, 1075, 1825, 3139

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011001010001011

Octal: 231213

Duodecimal: 394B7

Hexadecimal: 1328b

Square: 6158325625

Square Root: 280.13389655662877

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

Composites whose prime factorization in base 9 is an anagram of the number in base 9. A260053

Numbers n=2·k-1 where ∑_j=1..k (-1)^j+1 * d(2·j-1) achieves a new negative record, with d(n) = number of divisors of n (A000005). A318738

Expansion of ∏_k>0 (1 - x^k)^5·k. A316464

Nonnegative numbers n such that n⁴² + 42 is prime. A104111

Determinant of rank n matrix of 1..n² filled successively back and forth along antidiagonals. A78475