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229650309 = 37722143
BaseRepresentation
bin11011011000000…
…10111110000101
3121000010110000000
431230002332011
5432242302214
634442111513
75455665300
oct1554027605
9530113000
10229650309
111086a4749
1264aab599
1338769075
14226ddb37
1515264809
hexdb02f85

229650309 has 48 divisors (see below), whose sum is σ = 400842240. Its totient is φ = 131167512.

The previous prime is 229650301. The next prime is 229650347. The reversal of 229650309 is 903056922.

229650309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 229650309 - 23 = 229650301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229650301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 106092 + ... + 108234.

It is an arithmetic number, because the mean of its divisors is an integer number (8350880).

Almost surely, 2229650309 is an apocalyptic number.

It is an amenable number.

229650309 is a deficient number, since it is larger than the sum of its proper divisors (171191931).

229650309 is an frugal number, since it uses more digits than its factorization.

229650309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2178 (or 2153 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 229650309 is about 15154.2175317632. The cubic root of 229650309 is about 612.3818983176.

The spelling of 229650309 in words is "two hundred twenty-nine million, six hundred fifty thousand, three hundred nine".

Divisors: 1 3 7 9 21 27 49 63 81 147 189 243 441 567 729 1323 1701 2143 2187 3969 5103 6429 11907 15001 15309 19287 35721 45003 57861 105007 107163 135009 173583 315021 405027 520749 945063 1215081 1562247 2835189 3645243 4686741 8505567 10935729 25516701 32807187 76550103 229650309