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64038794 = 232019397
BaseRepresentation
bin1111010001001…
…0011110001010
311110111111201012
43310102132022
5112343220134
610204323522
71405215011
oct364223612
9143444635
1064038794
113316a326
12195435a2
13103623a1
14870da78
15594e6ce
hex3d1278a

64038794 has 4 divisors (see below), whose sum is σ = 96058194. Its totient is φ = 32019396.

The previous prime is 64038791. The next prime is 64038803. The reversal of 64038794 is 49783046.

64038794 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49783046 = 224891523.

It can be written as a sum of positive squares in only one way, i.e., 48930025 + 15108769 = 6995^2 + 3887^2 .

It is not an unprimeable number, because it can be changed into a prime (64038791) 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 as a sum of consecutive naturals, namely, 16009697 + ... + 16009700.

Almost surely, 264038794 is an apocalyptic number.

64038794 is a deficient number, since it is larger than the sum of its proper divisors (32019400).

64038794 is a wasteful number, since it uses less digits than its factorization.

64038794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32019399.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 64038794 is about 8002.4242576859. The cubic root of 64038794 is about 400.0808045088.

The spelling of 64038794 in words is "sixty-four million, thirty-eight thousand, seven hundred ninety-four".

Divisors: 1 2 32019397 64038794