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64111827 = 3131643893
BaseRepresentation
bin1111010010010…
…0010011010011
311110122012220010
43310210103103
5112403034302
610210050003
71405640643
oct364442323
9143565803
1064111827
113320a18a
1219579903
13103896c0
14872c523
15596616c
hex3d244d3

64111827 has 8 divisors (see below), whose sum is σ = 92058064. Its totient is φ = 39453408.

The previous prime is 64111799. The next prime is 64111843. The reversal of 64111827 is 72811146.

64111827 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 not a de Polignac number, because 64111827 - 26 = 64111763 is a prime.

It is a super-2 number, since 2×641118272 = 8220652722555858, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64111794 and 64111803.

It is not an unprimeable number, because it can be changed into a prime (64111727) 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 7 ways as a sum of consecutive naturals, for example, 821908 + ... + 821985.

It is an arithmetic number, because the mean of its divisors is an integer number (11507258).

Almost surely, 264111827 is an apocalyptic number.

64111827 is a deficient number, since it is larger than the sum of its proper divisors (27946237).

64111827 is a wasteful number, since it uses less digits than its factorization.

64111827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643909.

The product of its digits is 2688, while the sum is 30.

The square root of 64111827 is about 8006.9861371180. The cubic root of 64111827 is about 400.2328373573.

The spelling of 64111827 in words is "sixty-four million, one hundred eleven thousand, eight hundred twenty-seven".

Divisors: 1 3 13 39 1643893 4931679 21370609 64111827