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57123247172 = 2271919862047
BaseRepresentation
bin110101001100110011…
…111001010001000100
312110110000110121202012
4311030303321101010
51413442022402142
642124141233352
74061365406135
oct651463712104
9173400417665
1057123247172
1122253647092
12b0a2562858
135504768894
142a9c7adc8c
151744e06882
hexd4ccf9444

57123247172 has 12 divisors (see below), whose sum is σ = 100104721920. Its totient is φ = 28521898056.

The previous prime is 57123247151. The next prime is 57123247217. The reversal of 57123247172 is 27174232175.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9928148 + ... + 9933899.

It is an arithmetic number, because the mean of its divisors is an integer number (8342060160).

Almost surely, 257123247172 is an apocalyptic number.

It is an amenable number.

57123247172 is a deficient number, since it is larger than the sum of its proper divisors (42981474748).

57123247172 is a wasteful number, since it uses less digits than its factorization.

57123247172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19862770 (or 19862768 counting only the distinct ones).

The product of its digits is 164640, while the sum is 41.

The spelling of 57123247172 in words is "fifty-seven billion, one hundred twenty-three million, two hundred forty-seven thousand, one hundred seventy-two".

Divisors: 1 2 4 719 1438 2876 19862047 39724094 79448188 14280811793 28561623586 57123247172