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64985306 = 271457643
BaseRepresentation
bin1111011111100…
…1100011011010
311112021121002012
43313321203122
5113114012211
610240505522
71416236351
oct367714332
9145247065
1064985306
1133756471
121991b2a2
1310604159
1488b8998
155a89d8b
hex3df98da

64985306 has 8 divisors (see below), whose sum is σ = 98851104. Its totient is φ = 32034940.

The previous prime is 64985303. The next prime is 64985309. The reversal of 64985306 is 60358946.

It is an interprime number because it is at equal distance from previous prime (64985303) and next prime (64985309).

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

It is not an unprimeable number, because it can be changed into a prime (64985303) by changing a digit.

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, 228680 + ... + 228963.

It is an arithmetic number, because the mean of its divisors is an integer number (12356388).

Almost surely, 264985306 is an apocalyptic number.

64985306 is a deficient number, since it is larger than the sum of its proper divisors (33865798).

64985306 is a wasteful number, since it uses less digits than its factorization.

64985306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457716.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 64985306 is about 8061.3464135962. The cubic root of 64985306 is about 402.0422758605.

The spelling of 64985306 in words is "sixty-four million, nine hundred eighty-five thousand, three hundred six".

Divisors: 1 2 71 142 457643 915286 32492653 64985306