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64279068 = 2237765227
BaseRepresentation
bin1111010100110…
…1001000011100
311110221201022020
43311031020130
5112423412233
610213420140
71410235350
oct365151034
9143851266
1064279068
11333138a7
121963a650
1310417869
148773460
15599a9b3
hex3d4d21c

64279068 has 24 divisors (see below), whose sum is σ = 171411072. Its totient is φ = 18365424.

The previous prime is 64279067. The next prime is 64279121. The reversal of 64279068 is 86097246.

64279068 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64279067) 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, 382530 + ... + 382697.

It is an arithmetic number, because the mean of its divisors is an integer number (7142128).

Almost surely, 264279068 is an apocalyptic number.

It is an amenable number.

64279068 is an abundant number, since it is smaller than the sum of its proper divisors (107132004).

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

64279068 is a wasteful number, since it uses less digits than its factorization.

64279068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765241 (or 765239 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 64279068 is about 8017.4227779256. The cubic root of 64279068 is about 400.5805486671.

The spelling of 64279068 in words is "sixty-four million, two hundred seventy-nine thousand, sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 765227 1530454 2295681 3060908 4591362 5356589 9182724 10713178 16069767 21426356 32139534 64279068