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64104449 = 107617971
BaseRepresentation
bin1111010010001…
…0100000000001
311110121211202212
43310202200001
5112402320244
610205551505
71405610303
oct364424001
9143554685
1064104449
1133204692
1219575595
1310386236
148729973
155963d9e
hex3d22801

64104449 has 8 divisors (see below), whose sum is σ = 64875168. Its totient is φ = 63337120.

The previous prime is 64104431. The next prime is 64104451. The reversal of 64104449 is 94440146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64104449 - 216 = 64038913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64104049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65534 + ... + 66504.

It is an arithmetic number, because the mean of its divisors is an integer number (8109396).

Almost surely, 264104449 is an apocalyptic number.

It is an amenable number.

64104449 is a deficient number, since it is larger than the sum of its proper divisors (770719).

64104449 is a wasteful number, since it uses less digits than its factorization.

64104449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1695.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 64104449 is about 8006.5254011962. The cubic root of 64104449 is about 400.2174838139.

The spelling of 64104449 in words is "sixty-four million, one hundred four thousand, four hundred forty-nine".

Divisors: 1 107 617 971 66019 103897 599107 64104449