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64066044 = 22374317737
BaseRepresentation
bin1111010001100…
…1000111111100
311110112220002110
43310121013330
5112400103134
610205054020
71405360320
oct364310774
9143486073
1064066044
1133188849
1219557310
1310371903
148719980
1559577e9
hex3d191fc

64066044 has 48 divisors (see below), whose sum is σ = 174825728. Its totient is φ = 17877888.

The previous prime is 64066031. The next prime is 64066049. The reversal of 64066044 is 44066046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64066049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5257 + ... + 12480.

Almost surely, 264066044 is an apocalyptic number.

It is an amenable number.

64066044 is an abundant number, since it is smaller than the sum of its proper divisors (110759684).

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

64066044 is a wasteful number, since it uses less digits than its factorization.

64066044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17794 (or 17792 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 64066044 is about 8004.1266856541. The cubic root of 64066044 is about 400.1375443651.

The spelling of 64066044 in words is "sixty-four million, sixty-six thousand, forty-four", and thus it is an eban number.

Divisors: 1 2 3 4 6 7 12 14 21 28 42 43 84 86 129 172 258 301 516 602 903 1204 1806 3612 17737 35474 53211 70948 106422 124159 212844 248318 372477 496636 744954 762691 1489908 1525382 2288073 3050764 4576146 5338837 9152292 10677674 16016511 21355348 32033022 64066044