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57784068 = 22325632851
BaseRepresentation
bin1101110001101…
…1011100000100
311000201201211200
43130123130010
5104243042233
65422302500
71301104446
oct334333404
9130651750
1057784068
112a688031
1217427a30
13bc82474
147962496
155116313
hex371b704

57784068 has 36 divisors (see below), whose sum is σ = 146376048. Its totient is φ = 19220400.

The previous prime is 57784057. The next prime is 57784079. The reversal of 57784068 is 86048775.

57784068 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (57784057) and next prime (57784079).

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 18843 + ... + 21693.

Almost surely, 257784068 is an apocalyptic number.

It is an amenable number.

57784068 is an abundant number, since it is smaller than the sum of its proper divisors (88591980).

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

57784068 is a wasteful number, since it uses less digits than its factorization.

57784068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3424 (or 3419 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 57784068 is about 7601.5832561382. The cubic root of 57784068 is about 386.6066953496.

The spelling of 57784068 in words is "fifty-seven million, seven hundred eighty-four thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 563 1126 1689 2252 2851 3378 5067 5702 6756 8553 10134 11404 17106 20268 25659 34212 51318 102636 1605113 3210226 4815339 6420452 9630678 14446017 19261356 28892034 57784068