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57660838 = 2173674621
BaseRepresentation
bin1101101111110…
…1010110100110
311000111110210121
43123331112212
5104230121323
65415512154
71300052254
oct333752646
9130443717
1057660838
112a603494
121738865a
13bc3b351
14792d5d4
1550dea5d
hex36fd5a6

57660838 has 16 divisors (see below), whose sum is σ = 91848384. Its totient is φ = 27054720.

The previous prime is 57660833. The next prime is 57660851. The reversal of 57660838 is 83806675.

It is a junction number, because it is equal to n+sod(n) for n = 57660794 and 57660803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57660833) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10168 + ... + 14788.

It is an arithmetic number, because the mean of its divisors is an integer number (5740524).

Almost surely, 257660838 is an apocalyptic number.

57660838 is a deficient number, since it is larger than the sum of its proper divisors (34187546).

57660838 is a wasteful number, since it uses less digits than its factorization.

57660838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5007.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 57660838 is about 7593.4733817931. The cubic root of 57660838 is about 386.3316746181.

The spelling of 57660838 in words is "fifty-seven million, six hundred sixty thousand, eight hundred thirty-eight".

Divisors: 1 2 17 34 367 734 4621 6239 9242 12478 78557 157114 1695907 3391814 28830419 57660838