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64816608 = 253675173
BaseRepresentation
bin1111011101000…
…0010111100000
311111222000200010
43313100113200
5113043112413
610233124520
71414634463
oct367202740
9144860603
1064816608
113365074a
1219859740
131057542c
1488732da
155a54dc3
hex3dd05e0

64816608 has 24 divisors (see below), whose sum is σ = 170143848. Its totient is φ = 21605504.

The previous prime is 64816601. The next prime is 64816621. The reversal of 64816608 is 80661846.

64816608 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64816601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337491 + ... + 337682.

It is an arithmetic number, because the mean of its divisors is an integer number (7089327).

Almost surely, 264816608 is an apocalyptic number.

It is an amenable number.

64816608 is an abundant number, since it is smaller than the sum of its proper divisors (105327240).

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

64816608 is a wasteful number, since it uses less digits than its factorization.

64816608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675186 (or 675178 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 64816608 is about 8050.8762256043. The cubic root of 64816608 is about 401.6940817553.

The spelling of 64816608 in words is "sixty-four million, eight hundred sixteen thousand, six hundred eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 675173 1350346 2025519 2700692 4051038 5401384 8102076 10802768 16204152 21605536 32408304 64816608