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230740902 = 2327419281
BaseRepresentation
bin11011100000011…
…01001110100110
3121002011212000100
431300031032212
5433032202102
634521324530
75501160000
oct1560151646
9532155010
10230740902
1110927a067
1265336746
1338a5b5a2
1422905370
15153cca1c
hexdc0d3a6

230740902 has 120 divisors (see below), whose sum is σ = 616107960. Its totient is φ = 62233920.

The previous prime is 230740889. The next prime is 230740903. The reversal of 230740902 is 209047032.

230740902 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 not an unprimeable number, because it can be changed into a prime (230740903) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 821002 + ... + 821282.

It is an arithmetic number, because the mean of its divisors is an integer number (5134233).

Almost surely, 2230740902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230740902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308053980).

230740902 is an abundant number, since it is smaller than the sum of its proper divisors (385367058).

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

230740902 is a wasteful number, since it uses less digits than its factorization.

230740902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 230740902 is about 15190.1580636937. The cubic root of 230740902 is about 613.3497538793.

Adding to 230740902 its reverse (209047032), we get a palindrome (439787934).

The spelling of 230740902 in words is "two hundred thirty million, seven hundred forty thousand, nine hundred two".

Divisors: 1 2 3 6 7 9 14 18 19 21 38 42 49 57 63 98 114 126 133 147 171 266 281 294 342 343 399 441 562 686 798 843 882 931 1029 1197 1686 1862 1967 2058 2394 2401 2529 2793 3087 3934 4802 5058 5339 5586 5901 6174 6517 7203 8379 10678 11802 13034 13769 14406 16017 16758 17703 19551 21609 27538 32034 35406 37373 39102 41307 43218 45619 48051 58653 74746 82614 91238 96102 96383 112119 117306 123921 136857 192766 224238 247842 261611 273714 289149 336357 410571 523222 578298 672714 674681 784833 821142 867447 1349362 1569666 1734894 1831277 2024043 2354499 3662554 4048086 4708998 5493831 6072129 10987662 12144258 12818939 16481493 25637878 32962986 38456817 76913634 115370451 230740902