Properties of the Number 855

Eight Hundred Fifty-Five

Basics

Value: 854 → 855 → 856

Parity: odd

Prime: No

Previous Prime: 853

Next Prime: 857

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 5 × 19

Divisors: 1, 3, 5, 9, 15, 19, 45, 57, 95, 171

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 1101010111

Octal: 1527

Duodecimal: 5B3

Hexadecimal: 357

Square: 731025

Square Root: 29.24038303442689

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 that are the sum of 2 positive cubes. A3325

10-gonal (or decagonal) numbers: a(n) = n*(4·n-3). A1107

Centered cube numbers: n³ + (n+1)³. A5898

Generalized 10-gonal numbers: m*(4·m - 3) for m = 0, +- 1, +- 2, +- 3, ... A74377

Numbers whose binary expansion is a decimal prime. A36952

Number of rucksack partitions of n: every consecutive constant subsequence has a different sum. A353864

Expansion of g.f. x*(1 + 3·x)/((1 + x)*(1 - x)³). A35608

Numbers that are sums of 2 distinct positive cubes. A24670

Coefficients for expansion of (g(x)d/dx)ⁿ g(x); refined Eulerian numbers for calculating compositional inverse of h(x) = (d/dx)^-1 1/g(x); iterated derivatives as infinitesimal generators of flows. A145271

Euler transform of A000292. A335