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199230222 = 231031791801
BaseRepresentation
bin10111110000000…
…00001100001110
3111212212221111010
423320000030032
5402000331342
631434110050
74636300062
oct1370001416
9455787433
10199230222
11a2507684
125687b326
1332377b09
141c661aa2
151275629c
hexbe0030e

199230222 has 32 divisors (see below), whose sum is σ = 404801280. Its totient is φ = 65361600.

The previous prime is 199230169. The next prime is 199230253. The reversal of 199230222 is 222032991.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 199230222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109722 + ... + 111522.

It is an arithmetic number, because the mean of its divisors is an integer number (12650040).

Almost surely, 2199230222 is an apocalyptic number.

199230222 is an abundant number, since it is smaller than the sum of its proper divisors (205571058).

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

199230222 is a wasteful number, since it uses less digits than its factorization.

199230222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2088.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 199230222 is about 14114.8936234036. The cubic root of 199230222 is about 584.0523014865.

The spelling of 199230222 in words is "one hundred ninety-nine million, two hundred thirty thousand, two hundred twenty-two".

Divisors: 1 2 3 6 103 179 206 309 358 537 618 1074 1801 3602 5403 10806 18437 36874 55311 110622 185503 322379 371006 556509 644758 967137 1113018 1934274 33205037 66410074 99615111 199230222