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64321086 = 2310720181
BaseRepresentation
bin1111010101011…
…1011000111110
311111000211221110
43311113120332
5112431233321
610214342450
71410502014
oct365273076
9144024843
1064321086
1133342425
121965aa26
1310430a1b
1487848b4
1559a8176
hex3d5763e

64321086 has 8 divisors (see below), whose sum is σ = 128642184. Its totient is φ = 21440360.

The previous prime is 64321079. The next prime is 64321141. The reversal of 64321086 is 68012346.

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

64321086 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5360085 + ... + 5360096.

It is an arithmetic number, because the mean of its divisors is an integer number (16080273).

Almost surely, 264321086 is an apocalyptic number.

64321086 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.

64321086 is a wasteful number, since it uses less digits than its factorization.

64321086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10720186.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 64321086 is about 8020.0427679658. The cubic root of 64321086 is about 400.6678136087.

The spelling of 64321086 in words is "sixty-four million, three hundred twenty-one thousand, eighty-six".

Divisors: 1 2 3 6 10720181 21440362 32160543 64321086