Properties of the Number 2049

Two Thousand Forty-Nine

Basics

Value: 2048 → 2049 → 2050

Parity: odd

Prime: No

Previous Prime: 2039

Next Prime: 2053

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 683

Divisors: 1, 3, 683, 2049

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 100000000001

Octal: 4001

Duodecimal: 1229

Hexadecimal: 801

Square: 4198401

Square Root: 45.2658811910251

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: Yes

OEIS Sequences

a(n) = 2ⁿ + 1. A51

Unary-encoded compressed factorization of natural numbers. A156552

a(n) = 2·n² + 1. A58331

Sums of two distinct powers of 2. A18900

Cullen numbers: a(n) = n·2ⁿ + 1. A2064

Number of partitions of n into distinct parts such that number of parts is even. A67661

a(0) = 1; for n>0, a(n) = 2ⁿ + 1. A83318

Inverse of A052330; A binary encoding of Fermi-Dirac factorization of n, shown in decimal. A52331

Numbers that are the sum of 2 positive 11th powers. A4813

Numbers that are the sum of 3 positive 5th powers. A3348