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199368234 = 232131635227
BaseRepresentation
bin10111110001000…
…01111000101010
3111220010221210200
423320201320222
5402014240414
631441053030
74640413332
oct1370417052
9456127720
10199368234
11a25a133a
1256927176
13323c5890
141c69a0c2
1512782109
hexbe21e2a

199368234 has 48 divisors (see below), whose sum is σ = 468136032. Its totient is φ = 60956064.

The previous prime is 199368233. The next prime is 199368259. The reversal of 199368234 is 432863991.

It is a happy number.

199368234 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 199368234.

It is not an unprimeable number, because it can be changed into a prime (199368233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35529 + ... + 40755.

It is an arithmetic number, because the mean of its divisors is an integer number (9752834).

Almost surely, 2199368234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199368234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234068016).

199368234 is an abundant number, since it is smaller than the sum of its proper divisors (268767798).

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

199368234 is a wasteful number, since it uses less digits than its factorization.

199368234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5411 (or 5408 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 199368234 is about 14119.7816555356. The cubic root of 199368234 is about 584.1871331399.

The spelling of 199368234 in words is "one hundred ninety-nine million, three hundred sixty-eight thousand, two hundred thirty-four".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 163 234 326 489 978 1467 2119 2934 4238 5227 6357 10454 12714 15681 19071 31362 38142 47043 67951 94086 135902 203853 407706 611559 852001 1223118 1704002 2556003 5112006 7668009 11076013 15336018 22152026 33228039 66456078 99684117 199368234