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66104360 = 2357236087
BaseRepresentation
bin1111110000101…
…0110000101000
311121101110010122
43330022300220
5113410314420
610320502412
71431610040
oct374126050
9147343118
1066104360
1134350203
121a17aa08
131090660a
148aca720
155c0b725
hex3f0ac28

66104360 has 32 divisors (see below), whose sum is σ = 169983360. Its totient is φ = 22664256.

The previous prime is 66104359. The next prime is 66104371. The reversal of 66104360 is 6340166.

It is a super-2 number, since 2×661043602 = 8739572822019200, which contains 22 as substring.

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, 117764 + ... + 118323.

It is an arithmetic number, because the mean of its divisors is an integer number (5311980).

Almost surely, 266104360 is an apocalyptic number.

It is an amenable number.

66104360 is an abundant number, since it is smaller than the sum of its proper divisors (103879000).

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

66104360 is a wasteful number, since it uses less digits than its factorization.

66104360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236105 (or 236101 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 66104360 is about 8130.4587816433. The cubic root of 66104360 is about 404.3368918172.

The spelling of 66104360 in words is "sixty-six million, one hundred four thousand, three hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 236087 472174 944348 1180435 1652609 1888696 2360870 3305218 4721740 6610436 8263045 9443480 13220872 16526090 33052180 66104360