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199355388 = 223472831249
BaseRepresentation
bin10111110000111…
…10101111111100
3111220010022011220
423320132233330
5402013333023
631440513340
74640331021
oct1370365774
9456108156
10199355388
11a2592721
125691b850
13323bca8b
141c695548
151277d3e3
hexbe1ebfc

199355388 has 48 divisors (see below), whose sum is σ = 477120000. Its totient is φ = 64756224.

The previous prime is 199355369. The next prime is 199355393. The reversal of 199355388 is 883553991.

199355388 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 199355388.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158988 + ... + 160236.

It is an arithmetic number, because the mean of its divisors is an integer number (9940000).

Almost surely, 2199355388 is an apocalyptic number.

It is an amenable number.

199355388 is an abundant number, since it is smaller than the sum of its proper divisors (277764612).

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

199355388 is a wasteful number, since it uses less digits than its factorization.

199355388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1586 (or 1584 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 51.

The square root of 199355388 is about 14119.3267544880. The cubic root of 199355388 is about 584.1745857898.

The spelling of 199355388 in words is "one hundred ninety-nine million, three hundred fifty-five thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 12 47 94 141 188 282 283 564 566 849 1132 1249 1698 2498 3396 3747 4996 7494 13301 14988 26602 39903 53204 58703 79806 117406 159612 176109 234812 352218 353467 704436 706934 1060401 1413868 2120802 4241604 16612949 33225898 49838847 66451796 99677694 199355388