Properties of the Number 1256

One Thousand Two Hundred Fifty-Six

Basics

Value: 1255 → 1256 → 1257

Parity: even

Prime: No

Previous Prime: 1249

Next Prime: 1259

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 ³ × 157

Divisors: 1, 2, 4, 8, 157, 314, 628, 1256

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 10011101000

Octal: 2350

Duodecimal: 888

Hexadecimal: 4e8

Square: 1577536

Square Root: 35.4400902933387

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 having a common factor. A18783

a(n) = ∑_d∣n p(d), where p(d) = A000041 = number of partitions of d. A47968

Number of partitions of partitions of n where all partitions have the same sum. A305551

Numbers k such that k⁸ + 1 is prime. A6314

Twice-partitioned numbers where the first partition is constant. A279787

Numbers m such that the Bernoulli number B_m has denominator 30. A51226

Numbers k such that φ(k) = φ(σ(k)). A6872

Number of ways to split an integer partition of n into consecutive subsequences with equal sums. A317715

Powers of cube root of 7 rounded up. A17996

Minimal exponents m such that the fractional part of (3/2)^m reaches a maximum (when starting with m=1). A153663