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204230310 = 235131157331
BaseRepresentation
bin11000010110001…
…00111010100110
3112020021222022120
430023010322212
5404240332220
632133210410
75026633434
oct1413047246
9466258276
10204230310
11a5312289
1258490a06
133340894b
141d1a3d54
1512de2a40
hexc2c4ea6

204230310 has 64 divisors (see below), whose sum is σ = 498541824. Its totient is φ = 53539200.

The previous prime is 204230291. The next prime is 204230339. The reversal of 204230310 is 13032402.

It is a super-2 number, since 2×2042303102 = 83420039045392200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 204230310.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 616845 + ... + 617175.

It is an arithmetic number, because the mean of its divisors is an integer number (7789716).

Almost surely, 2204230310 is an apocalyptic number.

204230310 is an abundant number, since it is smaller than the sum of its proper divisors (294311514).

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

204230310 is a wasteful number, since it uses less digits than its factorization.

204230310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 204230310 is about 14290.9170454523. The cubic root of 204230310 is about 588.8979812027.

Adding to 204230310 its reverse (13032402), we get a palindrome (217262712).

The spelling of 204230310 in words is "two hundred four million, two hundred thirty thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 15 30 131 157 262 314 331 393 471 655 662 785 786 942 993 1310 1570 1655 1965 1986 2355 3310 3930 4710 4965 9930 20567 41134 43361 51967 61701 86722 102835 103934 123402 130083 155901 205670 216805 259835 260166 308505 311802 433610 519670 617010 650415 779505 1300830 1559010 6807677 13615354 20423031 34038385 40846062 68076770 102115155 204230310