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39891068 = 2271424681
BaseRepresentation
bin1001100000101…
…1000001111100
32210001200020222
42120023001330
540203003233
63543000512
7663032330
oct230130174
983050228
1039891068
1120576828
1211439138
1383590a9
1454257c0
15377e898
hex260b07c

39891068 has 12 divisors (see below), whose sum is σ = 79782192. Its totient is φ = 17096160.

The previous prime is 39891023. The next prime is 39891083. The reversal of 39891068 is 86019893.

39891068 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 712313 + ... + 712368.

It is an arithmetic number, because the mean of its divisors is an integer number (6648516).

Almost surely, 239891068 is an apocalyptic number.

It is an amenable number.

39891068 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39891068 is a wasteful number, since it uses less digits than its factorization.

39891068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424692 (or 1424690 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 39891068 is about 6315.9376184380. The cubic root of 39891068 is about 341.6844552573.

The spelling of 39891068 in words is "thirty-nine million, eight hundred ninety-one thousand, sixty-eight".