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57220340308 = 22378920292141
BaseRepresentation
bin110101010010100110…
…010001101001010100
312110200210011110111021
4311102212101221110
51414141401342213
642141530250524
74063654603405
oct652246215124
9173623143437
1057220340308
11222a343264a
12b10ab86a44
13551b902241
142aab6459ac
15174d6d4d8d
hexd52991a54

57220340308 has 48 divisors (see below), whose sum is σ = 104097344400. Its totient is φ = 27497733120.

The previous prime is 57220340279. The next prime is 57220340311. The reversal of 57220340308 is 80304302275.

It can be written as a sum of positive squares in 8 ways, for example, as 23429812624 + 33790527684 = 153068^2 + 183822^2 .

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, 26724918 + ... + 26727058.

It is an arithmetic number, because the mean of its divisors is an integer number (2168694675).

Almost surely, 257220340308 is an apocalyptic number.

It is an amenable number.

57220340308 is a deficient number, since it is larger than the sum of its proper divisors (46877004092).

57220340308 is a wasteful number, since it uses less digits than its factorization.

57220340308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4300 (or 4298 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The spelling of 57220340308 in words is "fifty-seven billion, two hundred twenty million, three hundred forty thousand, three hundred eight".

Divisors: 1 2 4 37 74 89 148 178 356 2029 2141 3293 4058 4282 6586 8116 8564 13172 75073 79217 150146 158434 180581 190549 300292 316868 361162 381098 722324 762196 4344089 6681497 7050313 8688178 13362994 14100626 17376356 26725988 28201252 160731293 321462586 386623921 642925172 773247842 1546495684 14305085077 28610170154 57220340308