Properties of the Number 51404

Fifty-One Thousand Four Hundred Four

Basics

Value: 51403 → 51404 → 51405

Parity: even

Prime: No

Previous Prime: 51383

Next Prime: 51407

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 71 × 181

Divisors: 1, 2, 4, 71, 142, 181, 284, 362, 724, 12851

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100100011001100

Octal: 144314

Duodecimal: 258B8

Hexadecimal: c8cc

Square: 2642371216

Square Root: 226.7245024253003

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

Total number of parts greater than 1 in all partitions of n minus the number of partitions of n into parts each less than n. A198381

Expansion of 1/sqrt((1 - x⁴)² - 4·x). A376792

a(n) = the smallest positive integer that produces a product that contains the digit 2 when multiplied by 2 at most n times, and where a further multiplication by 2 produces a number that does not contain the digit 2. Set a(n) = -1 if no such number exists. A381183

Solution of the complementary equation a(n) = 2·a(n-1) - a(n-3) + b(n-2), where a(0) = 2, a(1) = 4, a(2) = 6, b(0) = 1, b(1) = 3, b(2) = 5, and (a(n)) and (b(n)) are increasing complementary sequences. A295618

Number of partitions satisfying 0 < cn(2,5) + cn(3,5). A39897

Numbers n such that sum of cubes of digits of n equals the sum of prime divisors of n. A217531

Numbers k such that neither 4 nor 9 divides binomial(2k-1,k) (almost certainly finite). A51404