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229188930 = 23517474373
BaseRepresentation
bin11011010100100…
…10010101000010
3120222021000002220
431222102111002
5432133021210
634424151510
75452034205
oct1552222502
9528230086
10229188930
1110840a043
1264908596
1338637069
142261d93c
15151c2c70
hexda92542

229188930 has 32 divisors (see below), whose sum is σ = 550494144. Its totient is φ = 61068096.

The previous prime is 229188913. The next prime is 229188941. The reversal of 229188930 is 39881922.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50224 + ... + 54596.

It is an arithmetic number, because the mean of its divisors is an integer number (17202942).

Almost surely, 2229188930 is an apocalyptic number.

229188930 is an abundant number, since it is smaller than the sum of its proper divisors (321305214).

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

229188930 is a wasteful number, since it uses less digits than its factorization.

229188930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6130.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 229188930 is about 15138.9870863278. The cubic root of 229188930 is about 611.9715213797.

The spelling of 229188930 in words is "two hundred twenty-nine million, one hundred eighty-eight thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 1747 3494 4373 5241 8735 8746 10482 13119 17470 21865 26205 26238 43730 52410 65595 131190 7639631 15279262 22918893 38198155 45837786 76396310 114594465 229188930