Search a number
-
+
31367 = 74481
BaseRepresentation
bin111101010000111
31121000202
413222013
52000432
6401115
7160310
oct75207
947022
1031367
1121626
121619b
131137b
14b607
159462
hex7a87

31367 has 4 divisors (see below), whose sum is σ = 35856. Its totient is φ = 26880.

The previous prime is 31357. The next prime is 31379. The reversal of 31367 is 76313.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 31367 - 212 = 27271 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 31367.

It is not an unprimeable number, because it can be changed into a prime (31307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2234 + ... + 2247.

It is an arithmetic number, because the mean of its divisors is an integer number (8964).

231367 is an apocalyptic number.

31367 is a deficient number, since it is larger than the sum of its proper divisors (4489).

31367 is an equidigital number, since it uses as much as digits as its factorization.

31367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4488.

The product of its digits is 378, while the sum is 20.

The square root of 31367 is about 177.1073121020. The cubic root of 31367 is about 31.5372868276.

It can be divided in two parts, 3136 and 7, that multiplied together give a cube (21952 = 283).

The spelling of 31367 in words is "thirty-one thousand, three hundred sixty-seven".

Divisors: 1 7 4481 31367