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57702380 = 2252885119
BaseRepresentation
bin1101110000011…
…1011111101100
311000120120210012
43130013133230
5104232434010
65420432352
71300314341
oct334073754
9130516705
1057702380
112a63171a
12173a86b8
13bc54228
1479407c8
1550ec005
hex37077ec

57702380 has 12 divisors (see below), whose sum is σ = 121175040. Its totient is φ = 23080944.

The previous prime is 57702353. The next prime is 57702391. The reversal of 57702380 is 8320775.

It is a super-3 number, since 3×577023803 (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1442540 + ... + 1442579.

It is an arithmetic number, because the mean of its divisors is an integer number (10097920).

Almost surely, 257702380 is an apocalyptic number.

It is an amenable number.

57702380 is an abundant number, since it is smaller than the sum of its proper divisors (63472660).

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

57702380 is a wasteful number, since it uses less digits than its factorization.

57702380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2885128 (or 2885126 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 57702380 is about 7596.2082646541. The cubic root of 57702380 is about 386.4244304546.

The spelling of 57702380 in words is "fifty-seven million, seven hundred two thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 2885119 5770238 11540476 14425595 28851190 57702380