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199999394 = 2741348431
BaseRepresentation
bin10111110101110…
…11111110100010
3111221100000120222
423322323332202
5402144440034
631502403042
74645652420
oct1372737642
9457300528
10199999394
11a2992561
1256b90482
1332586c4a
141c7c2110
151285912e
hexbebbfa2

199999394 has 16 divisors (see below), whose sum is σ = 351219456. Its totient is φ = 83623200.

The previous prime is 199999391. The next prime is 199999409. The reversal of 199999394 is 493999991.

199999394 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (199999391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173642 + ... + 174789.

It is an arithmetic number, because the mean of its divisors is an integer number (21951216).

Almost surely, 2199999394 is an apocalyptic number.

199999394 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

199999394 is a deficient number, since it is larger than the sum of its proper divisors (151220062).

199999394 is a wasteful number, since it uses less digits than its factorization.

199999394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348481.

The product of its digits is 6377292, while the sum is 62.

The square root of 199999394 is about 14142.1141983793. The cubic root of 199999394 is about 584.8029569904.

The spelling of 199999394 in words is "one hundred ninety-nine million, nine hundred ninety-nine thousand, three hundred ninety-four".

Divisors: 1 2 7 14 41 82 287 574 348431 696862 2439017 4878034 14285671 28571342 99999697 199999394