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120078057 = 31114924421
BaseRepresentation
bin1110010100000…
…11111011101001
322100221121010110
413022003323221
5221214444212
615525404533
72655434541
oct712037351
9270847113
10120078057
1161865470
1234269749
131bb53608
1411d3a321
15a81da3c
hex7283ee9

120078057 has 16 divisors (see below), whose sum is σ = 175838400. Its totient is φ = 72283200.

The previous prime is 120078047. The next prime is 120078083. The reversal of 120078057 is 750870021.

It is a happy number.

It is not a de Polignac number, because 120078057 - 214 = 120061673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120078017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7294 + ... + 17127.

It is an arithmetic number, because the mean of its divisors is an integer number (10989900).

Almost surely, 2120078057 is an apocalyptic number.

It is an amenable number.

120078057 is a deficient number, since it is larger than the sum of its proper divisors (55760343).

120078057 is a wasteful number, since it uses less digits than its factorization.

120078057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24584.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 120078057 is about 10958.0133692198. The cubic root of 120078057 is about 493.3493389722.

The spelling of 120078057 in words is "one hundred twenty million, seventy-eight thousand, fifty-seven".

Divisors: 1 3 11 33 149 447 1639 4917 24421 73263 268631 805893 3638729 10916187 40026019 120078057