Properties of the Number 31306

Thirty-One Thousand Three Hundred Six

Basics

Value: 31305 → 31306 → 31307

Parity: even

Prime: No

Previous Prime: 31277

Next Prime: 31307

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 × 11 × 1423

Divisors: 1, 2, 11, 22, 1423, 2846, 15653, 31306

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111101001001010

Octal: 75112

Duodecimal: 1614A

Hexadecimal: 7a4a

Square: 980065636

Square Root: 176.93501631955164

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 the digit sum of 167^k is divisible by k. A175552

a(n) = binary code (shown here in decimal) of the position of natural number n in the beanstalk-tree A218776. A218615

Third column (m=4) of array A090452. A90453

Number of partitions of n with rank a multiple of 4. A363233

Irregular triangle read by rows: T(n,k) = number of size k subsets of S_n that remain unchanged under the operation of replacing a permutation with its inverse. A277081

a(n) = n*(12·n³ + 10·n² - 9·n - 7)/6. A172080

Expansion of f(-x²)⁵ * f(-x¹²)³ / (f(x)² * f(-x⁸)⁶) in powers of·where f() is a Ramanujan θ function. A262162

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 771", based on the 5-celled von Neumann neighborhood. A273500

A331757(n)/2. A331758

T(n, k) is the total number of non-symmetric peaks in all partitions of n with exactly k blocks, n >= 4, 3 <= k <= n-1. A370373