Properties of the Number 7065

Seven Thousand Sixty-Five

Basics

Value: 7064 → 7065 → 7066

Parity: odd

Prime: No

Previous Prime: 7057

Next Prime: 7069

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 5 × 157

Divisors: 1, 3, 5, 9, 15, 45, 157, 471, 785, 1413

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1101110011001

Octal: 15631

Duodecimal: 4109

Hexadecimal: 1b99

Square: 49914225

Square Root: 84.0535543567314

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

a(n) = n*(7·n - 1)/2. A22264

Numbers k such that 2^k + 17 is prime. A57200

Low temperature series for spin-1/2 Ising partition function on 3-dimensional simple cubic lattice. A2891

Consecutive states of the linear congruential pseudo-random number generator (421·s + 1663) mod 7875 when started at s=1. A385003

Solutions to φ(n) = φ(σ(n)) that are not given by Theorem 3 of Golomb's manuscript. A260021

Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 489", based on the 5-celled von Neumann neighborhood. A282608

Number of fixed n-polysticks (or polyedges) in 5 dimensions. A365564

Square array read by antidiagonals: T(n,d) is the number of fixed d-dimensional polysticks of size n. A385581

Number n such that a2 - n³ is a triangular number (A000217), where a2 is the least square above n³. A233400

a(n) is the total number of down-steps after the final up-step in all 4_2-Dyck paths of length 5·n (n up-steps and 4·n down-steps). A334611