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229409860 = 22511470493
BaseRepresentation
bin11011010110010…
…00010001000100
3120222200020011111
431223020101010
5432212103420
634433014404
75453644261
oct1553102104
9528606144
10229409860
11108550029
12649b4404
13386b37a4
142267a268
151521845a
hexdac8444

229409860 has 12 divisors (see below), whose sum is σ = 481760748. Its totient is φ = 91763936.

The previous prime is 229409839. The next prime is 229409861. The reversal of 229409860 is 68904922.

229409860 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 90782784 + 138627076 = 9528^2 + 11774^2 .

It is not an unprimeable number, because it can be changed into a prime (229409861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5735227 + ... + 5735266.

It is an arithmetic number, because the mean of its divisors is an integer number (40146729).

Almost surely, 2229409860 is an apocalyptic number.

229409860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229409860 is an abundant number, since it is smaller than the sum of its proper divisors (252350888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

229409860 is a wasteful number, since it uses less digits than its factorization.

229409860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11470502 (or 11470500 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 229409860 is about 15146.2820520417. The cubic root of 229409860 is about 612.1680978431.

The spelling of 229409860 in words is "two hundred twenty-nine million, four hundred nine thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 11470493 22940986 45881972 57352465 114704930 229409860