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199828512 = 25331317791
BaseRepresentation
bin10111110100100…
…10010000100000
3111221000100012000
423322102100200
5402124003022
631455004000
74644341262
oct1372222040
9457010160
10199828512
11a2886134
1256b09600
1332527230
141c779b32
15128236ac
hexbe92420

199828512 has 96 divisors (see below), whose sum is σ = 627701760. Its totient is φ = 61482240.

The previous prime is 199828507. The next prime is 199828543. The reversal of 199828512 is 215828991.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2337 + ... + 20127.

It is an arithmetic number, because the mean of its divisors is an integer number (6538560).

Almost surely, 2199828512 is an apocalyptic number.

199828512 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 199828512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313850880).

199828512 is an abundant number, since it is smaller than the sum of its proper divisors (427873248).

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

199828512 is a wasteful number, since it uses less digits than its factorization.

199828512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17823 (or 17809 counting only the distinct ones).

The product of its digits is 103680, while the sum is 45.

The square root of 199828512 is about 14136.0713071207. The cubic root of 199828512 is about 584.6363551963.

The spelling of 199828512 in words is "one hundred ninety-nine million, eight hundred twenty-eight thousand, five hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 27 32 36 39 48 52 54 72 78 96 104 108 117 144 156 208 216 234 288 312 351 416 432 468 624 702 864 936 1248 1404 1872 2808 3744 5616 11232 17791 35582 53373 71164 106746 142328 160119 213492 231283 284656 320238 426984 462566 480357 569312 640476 693849 853968 925132 960714 1280952 1387698 1707936 1850264 1921428 2081547 2561904 2775396 3700528 3842856 4163094 5123808 5550792 6244641 7401056 7685712 8326188 11101584 12489282 15371424 16652376 22203168 24978564 33304752 49957128 66609504 99914256 199828512