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199118392 = 23115938351
BaseRepresentation
bin10111101111001…
…00111000111000
3111212200021002021
423313210320320
5401433242032
631431444224
74635323044
oct1367447070
9455607067
10199118392
11a2440660
1256826674
1332338c45
141c633024
1512733097
hexbde4e38

199118392 has 32 divisors (see below), whose sum is σ = 414201600. Its totient is φ = 88972000.

The previous prime is 199118389. The next prime is 199118401. The reversal of 199118392 is 293811991.

199118392 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13984 + ... + 24367.

It is an arithmetic number, because the mean of its divisors is an integer number (12943800).

Almost surely, 2199118392 is an apocalyptic number.

It is an amenable number.

199118392 is an abundant number, since it is smaller than the sum of its proper divisors (215083208).

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

199118392 is a wasteful number, since it uses less digits than its factorization.

199118392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38427 (or 38423 counting only the distinct ones).

The product of its digits is 34992, while the sum is 43.

The square root of 199118392 is about 14110.9316489026. The cubic root of 199118392 is about 583.9430028192.

The spelling of 199118392 in words is "one hundred ninety-nine million, one hundred eighteen thousand, three hundred ninety-two".

Divisors: 1 2 4 8 11 22 44 59 88 118 236 472 649 1298 2596 5192 38351 76702 153404 306808 421861 843722 1687444 2262709 3374888 4525418 9050836 18101672 24889799 49779598 99559196 199118392