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57001111 = 419771423
BaseRepresentation
bin1101100101110…
…0010010010111
310222020221211021
43121130102113
5104043013421
65353422011
71261333666
oct331342227
9128227737
1057001111
112a1a2862
121710a907
13ba69c8b
1477daddd
15500e341
hex365c497

57001111 has 8 divisors (see below), whose sum is σ = 58492224. Its totient is φ = 55514880.

The previous prime is 57001093. The next prime is 57001117. The reversal of 57001111 is 11110075.

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 57001111 - 225 = 23446679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57001117) 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, 39346 + ... + 40768.

It is an arithmetic number, because the mean of its divisors is an integer number (7311528).

Almost surely, 257001111 is an apocalyptic number.

57001111 is a deficient number, since it is larger than the sum of its proper divisors (1491113).

57001111 is a wasteful number, since it uses less digits than its factorization.

57001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2441.

The product of its (nonzero) digits is 35, while the sum is 16.

The square root of 57001111 is about 7549.9080126847. The cubic root of 57001111 is about 384.8526135119.

Adding to 57001111 its reverse (11110075), we get a palindrome (68111186).

The spelling of 57001111 in words is "fifty-seven million, one thousand, one hundred eleven".

Divisors: 1 41 977 1423 40057 58343 1390271 57001111