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31327933 = 713344263
BaseRepresentation
bin111011110000…
…0011010111101
32011221121211211
41313200122331
531004443213
63035244421
7530166040
oct167403275
964847754
1031327933
111675815a
12a5a9711
13664b550
144236c57
152b3c53d
hex1de06bd

31327933 has 8 divisors (see below), whose sum is σ = 38557568. Its totient is φ = 24786864.

The previous prime is 31327921. The next prime is 31327939. The reversal of 31327933 is 33972313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31327933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31327895 and 31327904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31327939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172041 + ... + 172222.

It is an arithmetic number, because the mean of its divisors is an integer number (4819696).

Almost surely, 231327933 is an apocalyptic number.

It is an amenable number.

31327933 is a deficient number, since it is larger than the sum of its proper divisors (7229635).

31327933 is a wasteful number, since it uses less digits than its factorization.

31327933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344283.

The product of its digits is 10206, while the sum is 31.

The square root of 31327933 is about 5597.1361427073. The cubic root of 31327933 is about 315.2418835848.

The spelling of 31327933 in words is "thirty-one million, three hundred twenty-seven thousand, nine hundred thirty-three".

Divisors: 1 7 13 91 344263 2409841 4475419 31327933