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66002060 = 2253300103
BaseRepresentation
bin1111101111000…
…1110010001100
311121012020210202
43323301302030
5113344031220
610314353032
71431002555
oct373616214
9147166722
1066002060
1134290363
121a12b778
131089bb97
148aa132c
155bdb275
hex3ef1c8c

66002060 has 12 divisors (see below), whose sum is σ = 138604368. Its totient is φ = 26400816.

The previous prime is 66002017. The next prime is 66002063. The reversal of 66002060 is 6020066.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 3300103 = 66002060 / (6 + 6 + 0 + 0 + 2 + 0 + 6 + 0).

It is not an unprimeable number, because it can be changed into a prime (66002063) 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, 1650032 + ... + 1650071.

It is an arithmetic number, because the mean of its divisors is an integer number (11550364).

Almost surely, 266002060 is an apocalyptic number.

It is an amenable number.

66002060 is an abundant number, since it is smaller than the sum of its proper divisors (72602308).

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

66002060 is a wasteful number, since it uses less digits than its factorization.

66002060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3300112 (or 3300110 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 66002060 is about 8124.1651878824. The cubic root of 66002060 is about 404.1282065409.

The spelling of 66002060 in words is "sixty-six million, two thousand, sixty", and thus it is an eban number.

Divisors: 1 2 4 5 10 20 3300103 6600206 13200412 16500515 33001030 66002060