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57151742 = 21371671249
BaseRepresentation
bin1101101000000…
…1000011111110
310222112121110012
43122001003332
5104112323432
65400543222
71262532104
oct332010376
9128477405
1057151742
112a295a4a
1217181b12
13bac06cb
147839c74
15503dcb2
hex36810fe

57151742 has 16 divisors (see below), whose sum is σ = 86940000. Its totient is φ = 28174848.

The previous prime is 57151733. The next prime is 57151771. The reversal of 57151742 is 24715175.

57151742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×571517422 = 6532643227269128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57151699 and 57151708.

It is a congruent number.

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, 45134 + ... + 46382.

It is an arithmetic number, because the mean of its divisors is an integer number (5433750).

Almost surely, 257151742 is an apocalyptic number.

57151742 is a deficient number, since it is larger than the sum of its proper divisors (29788258).

57151742 is a wasteful number, since it uses less digits than its factorization.

57151742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555.

The product of its digits is 9800, while the sum is 32.

The square root of 57151742 is about 7559.8771154034. The cubic root of 57151742 is about 385.1913188658.

The spelling of 57151742 in words is "fifty-seven million, one hundred fifty-one thousand, seven hundred forty-two".

Divisors: 1 2 137 167 274 334 1249 2498 22879 45758 171113 208583 342226 417166 28575871 57151742