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45648805 = 59129761
BaseRepresentation
bin1010111000100…
…0101110100101
310011220012101111
42232020232211
543141230210
64310225021
71063002616
oct256105645
9104805344
1045648805
1123849694
1213355171
1395c3a37
1460c3c0d
15401a88a
hex2b88ba5

45648805 has 4 divisors (see below), whose sum is σ = 54778572. Its totient is φ = 36519040.

The previous prime is 45648781. The next prime is 45648817. The reversal of 45648805 is 50884654.

45648805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50884654 = 225442327.

It can be written as a sum of positive squares in 2 ways, for example, as 17833729 + 27815076 = 4223^2 + 5274^2 .

It is not a de Polignac number, because 45648805 - 215 = 45616037 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 4564876 + ... + 4564885.

It is an arithmetic number, because the mean of its divisors is an integer number (13694643).

Almost surely, 245648805 is an apocalyptic number.

It is an amenable number.

45648805 is a deficient number, since it is larger than the sum of its proper divisors (9129767).

45648805 is an equidigital number, since it uses as much as digits as its factorization.

45648805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9129766.

The product of its (nonzero) digits is 153600, while the sum is 40.

The square root of 45648805 is about 6756.3899384213. The cubic root of 45648805 is about 357.3906099208.

The spelling of 45648805 in words is "forty-five million, six hundred forty-eight thousand, eight hundred five".

Divisors: 1 5 9129761 45648805