Properties of the Number 1239

One Thousand Two Hundred Thirty-Nine

Basics

Value: 1238 → 1239 → 1240

Parity: odd

Prime: No

Previous Prime: 1237

Next Prime: 1249

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 7 × 59

Divisors: 1, 3, 7, 21, 59, 177, 413, 1239

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011010111

Octal: 2327

Duodecimal: 873

Hexadecimal: 4d7

Square: 1535121

Square Root: 35.199431813596085

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 both k and k + 1 are Niven numbers in base 2 (A049445). A330931

Triangle T read by rows: diagonal differences of triangle A037027. A55830

Number of integer partitions of n having a part that can be written as a nonnegative linear combination of the other (possibly equal) parts. A364913

Expansion of 1/((1-x)²*(1-x²)*(1-x³)). A601

Toothpick sequence in the three-dimensional grid. A160160

a(n) = n*(n + 17)/2. A56126

Values of n such that L(9) and N(9) are both prime, where L(k) = (n²+n+1)*2^2·k + (2·n+1)*2^k + 1, N(k) = (n²+n+1)*2^k + n. A226929

Values of n such that n²-2 and n²+2 are both prime. A108701

a(n) = n² + 14. A114962

Maximally refined partitions into distinct parts (of any natural number) with largest part n. A179822