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39112974 = 2322172943
BaseRepresentation
bin1001010100110…
…1000100001110
32201121010220200
42111031010032
540003103344
63514154330
7653311665
oct225150416
981533820
1039112974
112009517a
12111229a6
138145b94
1452a1ddc
153679069
hex254d10e

39112974 has 12 divisors (see below), whose sum is σ = 84744816. Its totient is φ = 13037652.

The previous prime is 39112973. The next prime is 39112981. The reversal of 39112974 is 47921193.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39112973) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1086454 + ... + 1086489.

It is an arithmetic number, because the mean of its divisors is an integer number (7062068).

Almost surely, 239112974 is an apocalyptic number.

39112974 is an abundant number, since it is smaller than the sum of its proper divisors (45631842).

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

39112974 is a wasteful number, since it uses less digits than its factorization.

39112974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172951 (or 2172948 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 39112974 is about 6254.0366164582. The cubic root of 39112974 is about 339.4482805239.

The spelling of 39112974 in words is "thirty-nine million, one hundred twelve thousand, nine hundred seventy-four".

Divisors: 1 2 3 6 9 18 2172943 4345886 6518829 13037658 19556487 39112974