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229420209 = 3199338371
BaseRepresentation
bin11011010110010…
…10110010110001
3120222200202100210
431223022302301
5432212421314
634433134333
75454016404
oct1553126261
9528622323
10229420209
11108557887
12649ba3a9
13386b8405
142267dd3b
151521b559
hexdacacb1

229420209 has 8 divisors (see below), whose sum is σ = 306055072. Its totient is φ = 152866080.

The previous prime is 229420201. The next prime is 229420211. The reversal of 229420209 is 902024922.

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

It is not a de Polignac number, because 229420209 - 23 = 229420201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229420201) 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, 13207 + ... + 25164.

It is an arithmetic number, because the mean of its divisors is an integer number (38256884).

Almost surely, 2229420209 is an apocalyptic number.

It is an amenable number.

229420209 is a deficient number, since it is larger than the sum of its proper divisors (76634863).

229420209 is a wasteful number, since it uses less digits than its factorization.

229420209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40367.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 229420209 is about 15146.6236831843. The cubic root of 229420209 is about 612.1773029580.

The spelling of 229420209 in words is "two hundred twenty-nine million, four hundred twenty thousand, two hundred nine".

Divisors: 1 3 1993 5979 38371 115113 76473403 229420209