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199392828 = 223109152441
BaseRepresentation
bin10111110001001…
…11111000111100
3111220012012112120
423320213320330
5402021032303
631441402540
74640545125
oct1370477074
9456165476
10199392828
11a2608868
1256939450
1332403b2b
141c6a504c
1512789553
hexbe27e3c

199392828 has 24 divisors (see below), whose sum is σ = 469521360. Its totient is φ = 65854080.

The previous prime is 199392827. The next prime is 199392829. The reversal of 199392828 is 828293991.

It is an interprime number because it is at equal distance from previous prime (199392827) and next prime (199392829).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199392827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74913 + ... + 77528.

It is an arithmetic number, because the mean of its divisors is an integer number (19563390).

Almost surely, 2199392828 is an apocalyptic number.

It is an amenable number.

199392828 is an abundant number, since it is smaller than the sum of its proper divisors (270128532).

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

199392828 is a wasteful number, since it uses less digits than its factorization.

199392828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152557 (or 152555 counting only the distinct ones).

The product of its digits is 559872, while the sum is 51.

The square root of 199392828 is about 14120.6525344971. The cubic root of 199392828 is about 584.2111538633.

The spelling of 199392828 in words is "one hundred ninety-nine million, three hundred ninety-two thousand, eight hundred twenty-eight".

Divisors: 1 2 3 4 6 12 109 218 327 436 654 1308 152441 304882 457323 609764 914646 1829292 16616069 33232138 49848207 66464276 99696414 199392828