Properties of the Number 15065

Fifteen Thousand Sixty-Five

Basics

Value: 15064 → 15065 → 15066

Parity: odd

Prime: No

Previous Prime: 15061

Next Prime: 15073

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 5 × 23 × 131

Divisors: 1, 5, 23, 115, 131, 655, 3013, 15065

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11101011011001

Octal: 35331

Duodecimal: 8875

Hexadecimal: 3ad9

Square: 226954225

Square Root: 122.73956167430288

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

Numbers k such that τ(k) = τ(k+1) mod 691, where τ is Ramanujan's τ function A000594. A121733

a(1)=1, a(2)=2; for n >= 2, a(n+1) = a(n) + sum of prime factors of a(n). A96461

Matrix inverse square-root of triangle A105615. A105620

Sum of the largest two parts in the partitions of 4n into 4 parts with smallest part equal to 1. A239186

Denominators of continued fraction convergents to sqrt(811). A42565

Numbers k such that (Sum of totatives of k) == 1 (mod Sum of primes dividing k with multiplicity). A340299

G.f. satisfies A(x) = 1 + x/(1 - x⁴)² * A(x/(1 - x⁴)). A360893

Difference between length (A005341) and sum of digits (A004977) of n-th term in Look and Say Sequence (A005150). A56635

Expansion (1+x³)/(1-x-x⁷). A98527

Number of points of norm <= n in the body-centered cubic lattice with the lattice parameter equal to 2/sqrt(3). A276648