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57243260 = 2252862163
BaseRepresentation
bin1101101001011…
…1011001111100
310222201020222202
43122113121330
5104123241020
65402531032
71263362654
oct332273174
9128636882
1057243260
112a348788
1217206a78
13bb23269
147861364
15505ae75
hex369767c

57243260 has 12 divisors (see below), whose sum is σ = 120210888. Its totient is φ = 22897296.

The previous prime is 57243247. The next prime is 57243269. The reversal of 57243260 is 6234275.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57243269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1431062 + ... + 1431101.

It is an arithmetic number, because the mean of its divisors is an integer number (10017574).

Almost surely, 257243260 is an apocalyptic number.

It is an amenable number.

57243260 is an abundant number, since it is smaller than the sum of its proper divisors (62967628).

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

57243260 is a wasteful number, since it uses less digits than its factorization.

57243260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2862172 (or 2862170 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 57243260 is about 7565.9275703644. The cubic root of 57243260 is about 385.3968135606.

The spelling of 57243260 in words is "fifty-seven million, two hundred forty-three thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 2862163 5724326 11448652 14310815 28621630 57243260