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31352929 is a prime number
BaseRepresentation
bin111011110011…
…0100001100001
32011222220010121
41313212201201
531011243204
63040000241
7530331646
oct167464141
964886117
1031352929
1116774a13
12a600081
136659a3a
144241dcd
152b44b54
hex1de6861

31352929 has 2 divisors, whose sum is σ = 31352930. Its totient is φ = 31352928.

The previous prime is 31352927. The next prime is 31352939. The reversal of 31352929 is 92925313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31102929 + 250000 = 5577^2 + 500^2 .

It is a cyclic number.

It is not a de Polignac number, because 31352929 - 21 = 31352927 is a prime.

Together with 31352927, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 31352894 and 31352903.

It is not a weakly prime, because it can be changed into another prime (31352921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15676464 + 15676465.

It is an arithmetic number, because the mean of its divisors is an integer number (15676465).

Almost surely, 231352929 is an apocalyptic number.

It is an amenable number.

31352929 is a deficient number, since it is larger than the sum of its proper divisors (1).

31352929 is an equidigital number, since it uses as much as digits as its factorization.

31352929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14580, while the sum is 34.

The square root of 31352929 is about 5599.3686251219. The cubic root of 31352929 is about 315.3257032582.

The spelling of 31352929 in words is "thirty-one million, three hundred fifty-two thousand, nine hundred twenty-nine".