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418886885 = 5174928081
BaseRepresentation
bin11000111101111…
…011010011100101
31002012012122210002
4120331323103211
51324213340020
6105322111045
713244323364
oct3075732345
91065178702
10418886885
111a54a5a0a
12b834b485
1368a25181
143d8bd7db
1526b94975
hex18f7b4e5

418886885 has 8 divisors (see below), whose sum is σ = 532232856. Its totient is φ = 315397120.

The previous prime is 418886869. The next prime is 418886887. The reversal of 418886885 is 588688814.

It can be written as a sum of positive squares in 4 ways, for example, as 200024449 + 218862436 = 14143^2 + 14794^2 .

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

It is not a de Polignac number, because 418886885 - 24 = 418886869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 418886885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (418886887) 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, 2463956 + ... + 2464125.

It is an arithmetic number, because the mean of its divisors is an integer number (66529107).

Almost surely, 2418886885 is an apocalyptic number.

It is an amenable number.

418886885 is a deficient number, since it is larger than the sum of its proper divisors (113345971).

418886885 is a wasteful number, since it uses less digits than its factorization.

418886885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4928103.

The product of its digits is 3932160, while the sum is 56.

The square root of 418886885 is about 20466.7262892725. The cubic root of 418886885 is about 748.2250679873.

The spelling of 418886885 in words is "four hundred eighteen million, eight hundred eighty-six thousand, eight hundred eighty-five".

Divisors: 1 5 17 85 4928081 24640405 83777377 418886885