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199222680 = 23351660189
BaseRepresentation
bin10111101111111…
…10010110011000
3111212212120010210
423313332112120
5402000111210
631434011120
74636236066
oct1367762630
9455776123
10199222680
11a2501a48
1256876aa0
1332374557
141c65d036
1512753e20
hexbdfe598

199222680 has 32 divisors (see below), whose sum is σ = 597668400. Its totient is φ = 53126016.

The previous prime is 199222631. The next prime is 199222693. The reversal of 199222680 is 86222991.

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, 829975 + ... + 830214.

Almost surely, 2199222680 is an apocalyptic number.

199222680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199222680 is an abundant number, since it is smaller than the sum of its proper divisors (398445720).

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

199222680 is a wasteful number, since it uses less digits than its factorization.

199222680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660203 (or 1660199 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 199222680 is about 14114.6264562687. The cubic root of 199222680 is about 584.0449314901.

The spelling of 199222680 in words is "one hundred ninety-nine million, two hundred twenty-two thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 1660189 3320378 4980567 6640756 8300945 9961134 13281512 16601890 19922268 24902835 33203780 39844536 49805670 66407560 99611340 199222680