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57383971 = 1915719237
BaseRepresentation
bin1101101011100…
…1110000100011
310222222102000021
43122321300203
5104142241341
65405534311
71264520131
oct332716043
9128872007
1057383971
112a434477
1217274397
13bb72318
14789a751
1550879d1
hex36b9c23

57383971 has 8 divisors (see below), whose sum is σ = 60792080. Its totient is φ = 54014688.

The previous prime is 57383899. The next prime is 57383983. The reversal of 57383971 is 17938375.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57383971 - 219 = 56859683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57383071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6636 + ... + 12601.

It is an arithmetic number, because the mean of its divisors is an integer number (7599010).

Almost surely, 257383971 is an apocalyptic number.

57383971 is a deficient number, since it is larger than the sum of its proper divisors (3408109).

57383971 is a wasteful number, since it uses less digits than its factorization.

57383971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19413.

The product of its digits is 158760, while the sum is 43.

The square root of 57383971 is about 7575.2208548662. The cubic root of 57383971 is about 385.7123394833.

The spelling of 57383971 in words is "fifty-seven million, three hundred eighty-three thousand, nine hundred seventy-one".

Divisors: 1 19 157 2983 19237 365503 3020209 57383971