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229913870 = 25199831231
BaseRepresentation
bin11011011010000…
…11010100001110
3121000121211112112
431231003110032
5432324220440
634451504022
75461143554
oct1555032416
9530554475
10229913870
1110886476a
1264bb8012
133882c014
142276bbd4
15152b7965
hexdb4350e

229913870 has 32 divisors (see below), whose sum is σ = 436423680. Its totient is φ = 86965920.

The previous prime is 229913863. The next prime is 229913881. The reversal of 229913870 is 78319922.

It is a happy number.

229913870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 186155 + ... + 187385.

It is an arithmetic number, because the mean of its divisors is an integer number (13638240).

Almost surely, 2229913870 is an apocalyptic number.

229913870 is a deficient number, since it is larger than the sum of its proper divisors (206509810).

229913870 is a wasteful number, since it uses less digits than its factorization.

229913870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2240.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 229913870 is about 15162.9110002005. The cubic root of 229913870 is about 612.6160779584.

The spelling of 229913870 in words is "two hundred twenty-nine million, nine hundred thirteen thousand, eight hundred seventy".

Divisors: 1 2 5 10 19 38 95 190 983 1231 1966 2462 4915 6155 9830 12310 18677 23389 37354 46778 93385 116945 186770 233890 1210073 2420146 6050365 12100730 22991387 45982774 114956935 229913870