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64688014 = 2234713781
BaseRepresentation
bin1111011011000…
…0111110001110
311111201111021101
43312300332032
5113030004024
610230253314
71413560536
oct366607616
9144644241
1064688014
1133573076
12197b723a
131052ba41
14883c4c6
155a2bc44
hex3db0f8e

64688014 has 8 divisors (see below), whose sum is σ = 97080408. Its totient is φ = 32327880.

The previous prime is 64687969. The next prime is 64688021. The reversal of 64688014 is 41088646.

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

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, 2197 + ... + 11584.

It is an arithmetic number, because the mean of its divisors is an integer number (12135051).

Almost surely, 264688014 is an apocalyptic number.

64688014 is a deficient number, since it is larger than the sum of its proper divisors (32392394).

64688014 is a wasteful number, since it uses less digits than its factorization.

64688014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16130.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 64688014 is about 8042.8859248407. The cubic root of 64688014 is about 401.4282566376.

The spelling of 64688014 in words is "sixty-four million, six hundred eighty-eight thousand, fourteen".

Divisors: 1 2 2347 4694 13781 27562 32344007 64688014