Search a number
-
+
64116388 = 2272289871
BaseRepresentation
bin1111010010010…
…1011010100100
311110122110011001
43310211122210
5112403211023
610210123044
71405660150
oct364453244
9143573131
1064116388
1133212656
1219580484
131038b7bb
148730060
1559676ad
hex3d256a4

64116388 has 12 divisors (see below), whose sum is σ = 128232832. Its totient is φ = 27478440.

The previous prime is 64116383. The next prime is 64116427. The reversal of 64116388 is 88361146.

64116388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

64116388 is an admirable number.

It is a super-2 number, since 2×641163882 = 8221822420333088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64116383) 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, 1144908 + ... + 1144963.

Almost surely, 264116388 is an apocalyptic number.

It is an amenable number.

64116388 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64116388 is a wasteful number, since it uses less digits than its factorization.

64116388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2289882 (or 2289880 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 64116388 is about 8007.2709458342. The cubic root of 64116388 is about 400.2423281630.

The spelling of 64116388 in words is "sixty-four million, one hundred sixteen thousand, three hundred eighty-eight".

Divisors: 1 2 4 7 14 28 2289871 4579742 9159484 16029097 32058194 64116388