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64805083 = 789104021
BaseRepresentation
bin1111011100110…
…1100011011011
311111221102212021
43313031203123
5113042230313
610232555311
71414556050
oct367154333
9144842767
1064805083
1133643022
1219852b37
1310570105
14886d027
155a5178d
hex3dcd8db

64805083 has 8 divisors (see below), whose sum is σ = 74895840. Its totient is φ = 54922560.

The previous prime is 64805033. The next prime is 64805087. The reversal of 64805083 is 38050846.

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

It is a de Polignac number, because none of the positive numbers 2k-64805083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64805087) 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 7 ways as a sum of consecutive naturals, for example, 51388 + ... + 52633.

It is an arithmetic number, because the mean of its divisors is an integer number (9361980).

Almost surely, 264805083 is an apocalyptic number.

64805083 is a deficient number, since it is larger than the sum of its proper divisors (10090757).

64805083 is a wasteful number, since it uses less digits than its factorization.

64805083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104117.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 64805083 is about 8050.1604331839. The cubic root of 64805083 is about 401.6702720207.

The spelling of 64805083 in words is "sixty-four million, eight hundred five thousand, eighty-three".

Divisors: 1 7 89 623 104021 728147 9257869 64805083