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57140412 = 22374331571
BaseRepresentation
bin1101100111111…
…0010010111100
310222112000220120
43121332102330
5104111443122
65400414540
71262454060
oct331762274
9128460816
1057140412
112a28848a
1217177450
13bab84c4
147835aa0
15503a75c
hex367e4bc

57140412 has 48 divisors (see below), whose sum is σ = 152823552. Its totient is φ = 16277760.

The previous prime is 57140393. The next prime is 57140423. The reversal of 57140412 is 21404175.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35587 + ... + 37157.

It is an arithmetic number, because the mean of its divisors is an integer number (3183824).

Almost surely, 257140412 is an apocalyptic number.

It is an amenable number.

57140412 is an abundant number, since it is smaller than the sum of its proper divisors (95683140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57140412 is a wasteful number, since it uses less digits than its factorization.

57140412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018 (or 2016 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 57140412 is about 7559.1277274564. The cubic root of 57140412 is about 385.1658632050.

Adding to 57140412 its reverse (21404175), we get a palindrome (78544587).

It can be divided in two parts, 5 and 7140412, that added together give a palindrome (7140417).

The spelling of 57140412 in words is "fifty-seven million, one hundred forty thousand, four hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 433 866 1299 1571 1732 2598 3031 3142 4713 5196 6062 6284 9093 9426 10997 12124 18186 18852 21994 32991 36372 43988 65982 131964 680243 1360486 2040729 2720972 4081458 4761701 8162916 9523402 14285103 19046804 28570206 57140412