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200155230 = 2325111811117
BaseRepresentation
bin10111110111000…
…10000001011110
3111221121221100200
423323202001132
5402214431410
631510004330
74650201642
oct1373420136
9457557320
10200155230
11a2a89650
12570466a6
133260cb62
141c822c22
151288a3c0
hexbee205e

200155230 has 96 divisors (see below), whose sum is σ = 571360608. Its totient is φ = 48211200.

The previous prime is 200155217. The next prime is 200155231. The reversal of 200155230 is 32551002.

It is a happy number.

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 (200155231) 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, 178632 + ... + 179748.

It is an arithmetic number, because the mean of its divisors is an integer number (5951673).

Almost surely, 2200155230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200155230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285680304).

200155230 is an abundant number, since it is smaller than the sum of its proper divisors (371205378).

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

200155230 is a wasteful number, since it uses less digits than its factorization.

200155230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322 (or 1319 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 200155230 is about 14147.6227685078. The cubic root of 200155230 is about 584.9548069405.

The spelling of 200155230 in words is "two hundred million, one hundred fifty-five thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 30 33 45 55 66 90 99 110 165 181 198 330 362 495 543 905 990 1086 1117 1629 1810 1991 2234 2715 3258 3351 3982 5430 5585 5973 6702 8145 9955 10053 11170 11946 12287 16290 16755 17919 19910 20106 24574 29865 33510 35838 36861 50265 59730 61435 73722 89595 100530 110583 122870 179190 184305 202177 221166 368610 404354 552915 606531 1010885 1105830 1213062 1819593 2021770 2223947 3032655 3639186 4447894 6065310 6671841 9097965 11119735 13343682 18195930 20015523 22239470 33359205 40031046 66718410 100077615 200155230