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57121060 = 2257513803
BaseRepresentation
bin1101100111100…
…1100100100100
310222111001100211
43121321210210
5104110333220
65400145204
71262343463
oct331714444
9128431324
1057121060
112a274997
1217168204
13baac759
14782c9da
155034b5a
hex3679924

57121060 has 24 divisors (see below), whose sum is σ = 120145536. Its totient is φ = 22812000.

The previous prime is 57121021. The next prime is 57121079. The reversal of 57121060 is 6012175.

57121060 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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, 13119 + ... + 16921.

It is an arithmetic number, because the mean of its divisors is an integer number (5006064).

Almost surely, 257121060 is an apocalyptic number.

It is an amenable number.

57121060 is an abundant number, since it is smaller than the sum of its proper divisors (63024476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57121060 is a wasteful number, since it uses less digits than its factorization.

57121060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4563 (or 4561 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 57121060 is about 7557.8475771876. The cubic root of 57121060 is about 385.1223763443.

The spelling of 57121060 in words is "fifty-seven million, one hundred twenty-one thousand, sixty".

Divisors: 1 2 4 5 10 20 751 1502 3004 3755 3803 7510 7606 15020 15212 19015 38030 76060 2856053 5712106 11424212 14280265 28560530 57121060