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83157042 = 2313859507
BaseRepresentation
bin1001111010011…
…10000000110010
312210110211000110
410331032000302
5132242011132
612130202150
72026552233
oct475160062
9183424013
1083157042
1142a38131
1223a23356
13142c7367
14b08908a
1574791cc
hex4f4e032

83157042 has 8 divisors (see below), whose sum is σ = 166314096. Its totient is φ = 27719012.

The previous prime is 83157031. The next prime is 83157043. The reversal of 83157042 is 24075138.

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

83157042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (83157043) 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, 6929748 + ... + 6929759.

It is an arithmetic number, because the mean of its divisors is an integer number (20789262).

Almost surely, 283157042 is an apocalyptic number.

83157042 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.

83157042 is a wasteful number, since it uses less digits than its factorization.

83157042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13859512.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 83157042 is about 9119.0483056073. The cubic root of 83157042 is about 436.4820055852.

The spelling of 83157042 in words is "eighty-three million, one hundred fifty-seven thousand, forty-two".

Divisors: 1 2 3 6 13859507 27719014 41578521 83157042