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Properties of the Number 31210

Thirty-One Thousand Two Hundred Ten

Basics

Value: 31209 → 31210 → 31211

Parity: even

Prime: No

Previous Prime: 31193

Next Prime: 31219

Digit Sum: 7

Digital Root: 7

Palindrome: No

Factorization: 2 × 5 × 3121

Divisors: 1, 2, 5, 10, 3121, 6242, 15605, 31210

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111100111101010

Octal: 74752

Duodecimal: 1608A

Hexadecimal: 79ea

Square: 974064100

Square Root: 176.6635219845908

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 distinct functions f representable as x -> xx^...x with n x's and parentheses inserted in all possible ways giving result f(0)=0, with conventions that 00=10=11=1, 01=0. A222379
Row sums of triangle A113711, in which row n forms a polynomial in y=2·k that generates diagonal n as k=0,1,2,... for n>=0. A113715
n written in fractional base 5/3. A24633
Number of Sidon subsets of {1,...,n} of size 4. A241688
Numbers k with maximal exponent in prime factorization equal to 1, such that k+1 has maximal exponent 2, k+2 has maximal exponent 3, and k+3 has maximal exponent 4. A176913
Number of partitions of n with equal nonzero number of parts congruent to each of 0 and 3 (mod 5). A35564
Number of (n+1)X3 0..3 arrays with every 2X2 subblock having nonzero determinant and having the same number of clockwise edge increases as its horizontal and vertical neighbors. A205762
Number of (n+1) X (6+1) 0..2 arrays with every 2 X 2 subblock diagonal maximum minus antidiagonal minimum unequal to its neighbors horizontally, vertically, diagonally and antidiagonally. A253467
Numbers having period-92 7-digitized sequences. A31210