Properties of the Number 904

Nine Hundred Four

Basics

Value: 903 → 904 → 905

Parity: even

Prime: No

Previous Prime: 887

Next Prime: 907

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 ³ × 113

Divisors: 1, 2, 4, 8, 113, 226, 452, 904

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1110001000

Octal: 1610

Duodecimal: 634

Hexadecimal: 388

Square: 817216

Square Root: 30.066592756745816

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

Central polygonal numbers (the Lazy Caterer's sequence): n(n+1)/2 + 1; or, maximal number of pieces formed when slicing a pancake with n cuts. A124

Number of partitions of n with equal number of even and odd parts. A45931

Partial sums of A000009 (partitions into distinct parts). A36469

Product of the cube of a prime (A030078) and a different prime. A65036

a(n) = 1 + n + 2·n². A84849

a(n) = n² + 4. A87475

a(n) = 1 + (n-2)*(n-1)/2. A152947

a(n) = ∑_k=1..n lcm(n,k)/n. A57661

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

Lunar primes (formerly called dismal primes) (cf. A087062). A87097