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64014638 = 2151211969
BaseRepresentation
bin1111010000110…
…0100100101110
311110110021120112
43310030210232
5112341432023
610204020022
71405054412
oct364144456
9143407515
1064014638
1133153166
1219531612
13103543ac
148704d42
155947478
hex3d0c92e

64014638 has 8 divisors (see below), whose sum is σ = 96658320. Its totient is φ = 31795200.

The previous prime is 64014637. The next prime is 64014641. The reversal of 64014638 is 83641046.

64014638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64014631) 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, 105683 + ... + 106286.

It is an arithmetic number, because the mean of its divisors is an integer number (12082290).

Almost surely, 264014638 is an apocalyptic number.

64014638 is a deficient number, since it is larger than the sum of its proper divisors (32643682).

64014638 is a wasteful number, since it uses less digits than its factorization.

64014638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212122.

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

The square root of 64014638 is about 8000.9148226937. The cubic root of 64014638 is about 400.0304935086.

The spelling of 64014638 in words is "sixty-four million, fourteen thousand, six hundred thirty-eight".

Divisors: 1 2 151 302 211969 423938 32007319 64014638