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128060057 = 192354737
BaseRepresentation
bin1111010001000…
…00101010011001
322220222010101002
413220200222121
5230240410212
620412434345
73113330636
oct750405231
9286863332
10128060057
1166317464
1236a789b5
13206b97a8
141301718d
15b398ac2
hex7a20a99

128060057 has 6 divisors (see below), whose sum is σ = 135155178. Its totient is φ = 121319712.

The previous prime is 128060041. The next prime is 128060077. The reversal of 128060057 is 750060821.

It can be written as a sum of positive squares in only one way, i.e., 116877721 + 11182336 = 10811^2 + 3344^2 .

It is not a de Polignac number, because 128060057 - 24 = 128060041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128060017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 177008 + ... + 177729.

It is an arithmetic number, because the mean of its divisors is an integer number (22525863).

Almost surely, 2128060057 is an apocalyptic number.

It is an amenable number.

128060057 is a deficient number, since it is larger than the sum of its proper divisors (7095121).

128060057 is an equidigital number, since it uses as much as digits as its factorization.

128060057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354775 (or 354756 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 128060057 is about 11316.3623572242. The cubic root of 128060057 is about 504.0472275073.

The spelling of 128060057 in words is "one hundred twenty-eight million, sixty thousand, fifty-seven".

Divisors: 1 19 361 354737 6740003 128060057