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64045125 = 325356929
BaseRepresentation
bin1111010001010…
…0000001000101
311110111211101200
43310110001011
5112343421000
610204413113
71405242324
oct364240105
9143454350
1064045125
1133174061
1219547199
1310365231
1487120bb
155951500
hex3d14045

64045125 has 24 divisors (see below), whose sum is σ = 115454040. Its totient is φ = 34156800.

The previous prime is 64045109. The next prime is 64045127. The reversal of 64045125 is 52154046.

64045125 is a `hidden beast` number, since 640 + 4 + 5 + 12 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 17791524 + 46253601 = 4218^2 + 6801^2 .

It is not a de Polignac number, because 64045125 - 24 = 64045109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64045127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27340 + ... + 29589.

It is an arithmetic number, because the mean of its divisors is an integer number (4810585).

Almost surely, 264045125 is an apocalyptic number.

It is an amenable number.

64045125 is a deficient number, since it is larger than the sum of its proper divisors (51408915).

64045125 is a wasteful number, since it uses less digits than its factorization.

64045125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56950 (or 56937 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 64045125 is about 8002.8198155400. The cubic root of 64045125 is about 400.0939883304.

The spelling of 64045125 in words is "sixty-four million, forty-five thousand, one hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 125 225 375 1125 56929 170787 284645 512361 853935 1423225 2561805 4269675 7116125 12809025 21348375 64045125