Properties of the Number 1065

One Thousand Sixty-Five

Basics

Value: 1064 → 1065 → 1066

Parity: odd

Prime: No

Previous Prime: 1063

Next Prime: 1069

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 71

Divisors: 1, 3, 5, 15, 71, 213, 355, 1065

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000101001

Octal: 2051

Duodecimal: 749

Hexadecimal: 429

Square: 1134225

Square Root: 32.63433774416144

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 partitions of n into parts 5k+1 or 5k+4. A3114

Generalized 12-gonal numbers: k*(5·k-4) for k = 0, +-1, +-2, ... A195162

12-gonal (or dodecagonal) numbers: a(n) = n*(5·n-4). A51624

Generalized 11-gonal (or hendecagonal) numbers: m*(9·m - 7)/2 with m = 0, 1, -1, 2, -2, 3, -3, ... A195160

Numbers that are the sum of 11 positive 5th powers. A3356

a(n) = 5·a(n-1) - 5·a(n-2) + a(n-3) with a(1) = 1 and a(k) = 0 if k <= 0. A61278

Numbers whose sum of even digits and sum of odd digits are equal. A36301

a(n) = ceiling(a(n-1)*3/2) with a(1) = 1. A61419

Number of numbers whose base-3/2 expansion (see A024629) has n digits. A81848

Products of exactly three distinct odd primes. A46389