Properties of the Number 64415

Sixty-Four Thousand Four Hundred Fifteen

Basics

Value: 64414 → 64415 → 64416

Parity: odd

Prime: No

Previous Prime: 64403

Next Prime: 64433

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 5 × 13 × 991

Divisors: 1, 5, 13, 65, 991, 4955, 12883, 64415

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111101110011111

Octal: 175637

Duodecimal: 3133B

Hexadecimal: fb9f

Square: 4149292225

Square Root: 253.80110322849268

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

Indices n of Riemann ζ zeros where the Riemann-Siegel Z function sets successive records of maximum absolute values abs(Z(t)) in the interval between the n-th and (n+1)-th zeros. A329823

a(1) = 0, a(n) = iter(n) if n is even, a(n) = iter(n)-1 if n is odd, where iter(n) = A003434(n) = smallest number of iterations of Euler totient function φ needed to reach 1. A64415