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66064060 = 2258114073
BaseRepresentation
bin1111110000000…
…0111010111100
311121022101212001
43330000322330
5113403022220
610315552044
71431351406
oct374007274
9147271761
1066064060
11343229a7
121a15b624
13108c117a
148ab9b76
155bee80a
hex3f00ebc

66064060 has 24 divisors (see below), whose sum is σ = 138939696. Its totient is φ = 26386560.

The previous prime is 66064049. The next prime is 66064087. The reversal of 66064060 is 6046066.

It is a congruent number.

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, 14184 + ... + 18256.

It is an arithmetic number, because the mean of its divisors is an integer number (5789154).

Almost surely, 266064060 is an apocalyptic number.

It is an amenable number.

66064060 is an abundant number, since it is smaller than the sum of its proper divisors (72875636).

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

66064060 is a wasteful number, since it uses less digits than its factorization.

66064060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4893 (or 4891 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 66064060 is about 8127.9800688732. The cubic root of 66064060 is about 404.2547081852.

The spelling of 66064060 in words is "sixty-six million, sixty-four thousand, sixty", and thus it is an eban number.

Divisors: 1 2 4 5 10 20 811 1622 3244 4055 4073 8110 8146 16220 16292 20365 40730 81460 3303203 6606406 13212812 16516015 33032030 66064060