Search a number
-
+
2111233230 = 23251710313397
BaseRepresentation
bin111110111010110…
…1101110011001110
312110010122202112100
41331311231303032
513310433430410
6545255015530
7103214120631
oct17565556316
95403582470
102111233230
11993810857
124ab06a5a6
13278521b42
14160571c18
15c55358c0
hex7dd6dcce

2111233230 has 96 divisors (see below), whose sum is σ = 5868967104. Its totient is φ = 524694528.

The previous prime is 2111233183. The next prime is 2111233231. The reversal of 2111233230 is 323321112.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111233231) 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, 150892 + ... + 164288.

It is an arithmetic number, because the mean of its divisors is an integer number (61135074).

Almost surely, 22111233230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2111233230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2934483552).

2111233230 is an abundant number, since it is smaller than the sum of its proper divisors (3757733874).

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

2111233230 is a wasteful number, since it uses less digits than its factorization.

2111233230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13530 (or 13527 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2111233230 is about 45948.1580697203. The cubic root of 2111233230 is about 1282.8584454582.

Adding to 2111233230 its reverse (323321112), we get a palindrome (2434554342).

The spelling of 2111233230 in words is "two billion, one hundred eleven million, two hundred thirty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 17 18 30 34 45 51 85 90 102 103 153 170 206 255 306 309 510 515 618 765 927 1030 1530 1545 1751 1854 3090 3502 4635 5253 8755 9270 10506 13397 15759 17510 26265 26794 31518 40191 52530 66985 78795 80382 120573 133970 157590 200955 227749 241146 401910 455498 602865 683247 1138745 1205730 1366494 1379891 2049741 2277490 2759782 3416235 4099482 4139673 6832470 6899455 8279346 10248705 12419019 13798910 20497410 20698365 23458147 24838038 41396730 46916294 62095095 70374441 117290735 124190190 140748882 211123323 234581470 351872205 422246646 703744410 1055616615 2111233230