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64004060 = 2253200203
BaseRepresentation
bin1111010000100…
…1111111011100
311110102202001202
43310021333130
5112341112220
610203455032
71405011521
oct364117734
9143382052
1064004060
113314621a
1219527478
131034c633
148701148
155944275
hex3d09fdc

64004060 has 12 divisors (see below), whose sum is σ = 134408568. Its totient is φ = 25601616.

The previous prime is 64004053. The next prime is 64004077. The reversal of 64004060 is 6040046.

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: 3200203 = 64004060 / (6 + 4 + 0 + 0 + 4 + 0 + 6 + 0).

It is a congruent number.

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, 1600082 + ... + 1600121.

It is an arithmetic number, because the mean of its divisors is an integer number (11200714).

Almost surely, 264004060 is an apocalyptic number.

It is an amenable number.

64004060 is an abundant number, since it is smaller than the sum of its proper divisors (70404508).

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

64004060 is a wasteful number, since it uses less digits than its factorization.

64004060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200212 (or 3200210 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 64004060 is about 8000.2537459758. The cubic root of 64004060 is about 400.0084581545.

The spelling of 64004060 in words is "sixty-four million, four thousand, sixty", and thus it is an eban number.

Divisors: 1 2 4 5 10 20 3200203 6400406 12800812 16001015 32002030 64004060