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204021230 = 25731149631
BaseRepresentation
bin11000010100100…
…01110111101110
3112012220100111212
430022101313232
5404212134410
632124514422
75025103040
oct1412216756
9465810455
10204021230
11a518a196
12583aba12
133336472a
141d14ba90
1512da0b05
hexc291dee

204021230 has 64 divisors (see below), whose sum is σ = 436838400. Its totient is φ = 67132800.

The previous prime is 204021229. The next prime is 204021241. The reversal of 204021230 is 32120402.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 323015 + ... + 323645.

It is an arithmetic number, because the mean of its divisors is an integer number (6825600).

Almost surely, 2204021230 is an apocalyptic number.

204021230 is an abundant number, since it is smaller than the sum of its proper divisors (232817170).

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

204021230 is a wasteful number, since it uses less digits than its factorization.

204021230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 204021230 is about 14283.6000364054. The cubic root of 204021230 is about 588.6969518995.

Adding to 204021230 its reverse (32120402), we get a palindrome (236141632).

The spelling of 204021230 in words is "two hundred four million, twenty-one thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 31 35 62 70 149 155 217 298 310 434 631 745 1043 1085 1262 1490 2086 2170 3155 4417 4619 5215 6310 8834 9238 10430 19561 22085 23095 32333 39122 44170 46190 64666 94019 97805 136927 161665 188038 195610 273854 323330 470095 658133 684635 940190 1316266 1369270 2914589 3290665 5829178 6581330 14572945 20402123 29145890 40804246 102010615 204021230