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4428885805 = 54121604321
BaseRepresentation
bin1000001111111101…
…10110111100101101
3102102122201201011121
410013332312330231
533032243321210
62011250220541
7214515623341
oct40776667455
912378651147
104428885805
111972a99503
12a37284751
13557737ab6
143002b7621
151adc426da
hex107fb6f2d

4428885805 has 8 divisors (see below), whose sum is σ = 5444289144. Its totient is φ = 3456691200.

The previous prime is 4428885779. The next prime is 4428885809. The reversal of 4428885805 is 5085888244.

It can be written as a sum of positive squares in 4 ways, for example, as 98982601 + 4329903204 = 9949^2 + 65802^2 .

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-4428885805 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4428885809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10801956 + ... + 10802365.

It is an arithmetic number, because the mean of its divisors is an integer number (680536143).

Almost surely, 24428885805 is an apocalyptic number.

It is an amenable number.

4428885805 is a deficient number, since it is larger than the sum of its proper divisors (1015403339).

4428885805 is a wasteful number, since it uses less digits than its factorization.

4428885805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21604367.

The product of its (nonzero) digits is 3276800, while the sum is 52.

The square root of 4428885805 is about 66549.8745678758. The cubic root of 4428885805 is about 1642.2205945534.

The spelling of 4428885805 in words is "four billion, four hundred twenty-eight million, eight hundred eighty-five thousand, eight hundred five".

Divisors: 1 5 41 205 21604321 108021605 885777161 4428885805