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64806982 = 2103314597
BaseRepresentation
bin1111011100111…
…0000001000110
311111221112110121
43313032001012
5113042310412
610233012154
71414564432
oct367160106
9144845417
1064806982
1133644499
121985405a
1310570c36
14886d9c2
155a52107
hex3dce046

64806982 has 8 divisors (see below), whose sum is σ = 98154576. Its totient is φ = 32088792.

The previous prime is 64806971. The next prime is 64806983. The reversal of 64806982 is 28960846.

It is a happy number.

64806982 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64806983) 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, 157093 + ... + 157504.

It is an arithmetic number, because the mean of its divisors is an integer number (12269322).

Almost surely, 264806982 is an apocalyptic number.

64806982 is a deficient number, since it is larger than the sum of its proper divisors (33347594).

64806982 is a wasteful number, since it uses less digits than its factorization.

64806982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314702.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 64806982 is about 8050.2783802798. The cubic root of 64806982 is about 401.6741953981.

The spelling of 64806982 in words is "sixty-four million, eight hundred six thousand, nine hundred eighty-two".

Divisors: 1 2 103 206 314597 629194 32403491 64806982