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Properties of the Number 31242

Thirty-One Thousand Two Hundred Forty-Two

Basics

Value: 31241 → 31242 → 31243

Parity: even

Prime: No

Previous Prime: 31237

Next Prime: 31247

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 41 × 127

Divisors: 1, 2, 3, 6, 41, 82, 123, 127, 246, 254

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111101000001010

Octal: 75012

Duodecimal: 160B6

Hexadecimal: 7a0a

Square: 976062564

Square Root: 176.75406643129884

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

Indices of primes in A141523. A235862
T(n,k) = Number of n X k 0..2 arrays with no element unequal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A280398
n written in fractional base 5/3. A24633
Number of binary sequences of length n having a conjugate at Hamming distance 2. A179674
a(n) = (A022010(n) - 179)/210. A357889
a(n) = (A022013(n) - 173)/210. A357890
Row sums of triangle A161363. A161375
Number of length 4+1 0..2·n arrays with the sum of the absolute values of adjacent differences equal to 4·n. A249984
Number of n X 3 0..2 arrays with no element unequal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A280393
Number of 6Xn 0..2 arrays with no element unequal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A280404