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199200012 = 223111917901
BaseRepresentation
bin10111101111110…
…00110100001100
3111212211102001020
423313320310030
5401443400022
631433314140
74636113024
oct1367706414
9455742036
10199200012
11a2496a10
1256865950
133236713b
141c654a84
151274c35c
hexbdf8d0c

199200012 has 48 divisors (see below), whose sum is σ = 509773824. Its totient is φ = 60040000.

The previous prime is 199199969. The next prime is 199200019. The reversal of 199200012 is 210002991.

It is not an unprimeable number, because it can be changed into a prime (199200019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21262 + ... + 29162.

It is an arithmetic number, because the mean of its divisors is an integer number (10620288).

Almost surely, 2199200012 is an apocalyptic number.

199200012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199200012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254886912).

199200012 is an abundant number, since it is smaller than the sum of its proper divisors (310573812).

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

199200012 is a wasteful number, since it uses less digits than its factorization.

199200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8110 (or 8108 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 199200012 is about 14113.8234366170. The cubic root of 199200012 is about 584.0227793391.

The spelling of 199200012 in words is "one hundred ninety-nine million, two hundred thousand, twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 191 382 573 764 1146 2101 2292 4202 6303 7901 8404 12606 15802 23703 25212 31604 47406 86911 94812 173822 260733 347644 521466 1042932 1509091 3018182 4527273 6036364 9054546 16600001 18109092 33200002 49800003 66400004 99600006 199200012