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57145174 = 21271571433
BaseRepresentation
bin1101100111111…
…1011101010110
310222112021102221
43121333131112
5104112121144
65400452554
71262504002
oct331773526
9128467387
1057145174
112a291019
121717a15a
13baba718
147837702
15503bd84
hex367f756

57145174 has 16 divisors (see below), whose sum is σ = 87003648. Its totient is φ = 28147392.

The previous prime is 57145163. The next prime is 57145189. The reversal of 57145174 is 47154175.

It is a super-2 number, since 2×571451742 = 6531141822980552, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39162 + ... + 40594.

It is an arithmetic number, because the mean of its divisors is an integer number (5437728).

Almost surely, 257145174 is an apocalyptic number.

57145174 is a deficient number, since it is larger than the sum of its proper divisors (29858474).

57145174 is a wasteful number, since it uses less digits than its factorization.

57145174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719.

The product of its digits is 19600, while the sum is 34.

The square root of 57145174 is about 7559.4427043268. The cubic root of 57145174 is about 385.1765626314.

Subtracting from 57145174 its reverse (47154175), we obtain a palindrome (9990999).

The spelling of 57145174 in words is "fifty-seven million, one hundred forty-five thousand, one hundred seventy-four".

Divisors: 1 2 127 157 254 314 1433 2866 19939 39878 181991 224981 363982 449962 28572587 57145174