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230435238 = 231117593
BaseRepresentation
bin11011011110000…
…10100110100110
3121001121022201110
431233002212212
5432442411423
634511005450
75465444565
oct1557024646
9531538643
10230435238
11109090450
1265209886
1338982417
1422865bdc
151536c193
hexdbc29a6

230435238 has 64 divisors (see below), whose sum is σ = 541520640. Its totient is φ = 64607360.

The previous prime is 230435213. The next prime is 230435243. The reversal of 230435238 is 832534032.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3905653 + ... + 3905711.

It is an arithmetic number, because the mean of its divisors is an integer number (8461260).

Almost surely, 2230435238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230435238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270760320).

230435238 is an abundant number, since it is smaller than the sum of its proper divisors (311085402).

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

230435238 is an equidigital number, since it uses as much as digits as its factorization.

230435238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 230435238 is about 15180.0934779731. The cubic root of 230435238 is about 613.0787980390.

The spelling of 230435238 in words is "two hundred thirty million, four hundred thirty-five thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 11 17 22 33 34 51 59 66 102 118 177 187 354 374 561 649 1003 1122 1298 1947 2006 3009 3481 3894 6018 6962 10443 11033 20886 22066 33099 38291 59177 66198 76582 114873 118354 177531 205379 229746 355062 410758 616137 650947 1232274 1301894 1952841 2259169 3491443 3905682 4518338 6777507 6982886 10474329 13555014 20948658 38405873 76811746 115217619 230435238