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83169057 = 393729587
BaseRepresentation
bin1001111010100…
…00111100100001
312210111102111110
410331100330201
5132242402212
612130333533
72026632246
oct475207441
9183442443
1083169057
1142a46164
1223a2a2a9
13142cc97a
14b08d5cd
15747ca3c
hex4f50f21

83169057 has 8 divisors (see below), whose sum is σ = 111014176. Its totient is φ = 55384992.

The previous prime is 83169041. The next prime is 83169077. The reversal of 83169057 is 75096138.

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

It is not a de Polignac number, because 83169057 - 24 = 83169041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83169077) 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 in 7 ways as a sum of consecutive naturals, for example, 11983 + ... + 17604.

It is an arithmetic number, because the mean of its divisors is an integer number (13876772).

Almost surely, 283169057 is an apocalyptic number.

It is an amenable number.

83169057 is a deficient number, since it is larger than the sum of its proper divisors (27845119).

83169057 is a wasteful number, since it uses less digits than its factorization.

83169057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30527.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 83169057 is about 9119.7070676640. The cubic root of 83169057 is about 436.5030263696.

The spelling of 83169057 in words is "eighty-three million, one hundred sixty-nine thousand, fifty-seven".

Divisors: 1 3 937 2811 29587 88761 27723019 83169057