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199553193 = 3377691373
BaseRepresentation
bin10111110010011…
…11000010101001
3111220111100112000
423321033002221
5402041200233
631445041213
74642113510
oct1371170251
9456440460
10199553193
11a27082a4
12569b6209
133245bb18
141c707677
15127bbd13
hexbe4f0a9

199553193 has 32 divisors (see below), whose sum is σ = 338553600. Its totient is φ = 113799168.

The previous prime is 199553183. The next prime is 199553201. The reversal of 199553193 is 391355991.

It is a happy number.

199553193 is a `hidden beast` number, since 1 + 9 + 9 + 553 + 1 + 93 = 666.

It is not a de Polignac number, because 199553193 - 213 = 199545001 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (199553113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144655 + ... + 146027.

It is an arithmetic number, because the mean of its divisors is an integer number (10579800).

Almost surely, 2199553193 is an apocalyptic number.

It is an amenable number.

199553193 is a deficient number, since it is larger than the sum of its proper divisors (139000407).

199553193 is a wasteful number, since it uses less digits than its factorization.

199553193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2158 (or 2152 counting only the distinct ones).

The product of its digits is 164025, while the sum is 45.

The square root of 199553193 is about 14126.3297781129. The cubic root of 199553193 is about 584.3677324079.

The spelling of 199553193 in words is "one hundred ninety-nine million, five hundred fifty-three thousand, one hundred ninety-three".

Divisors: 1 3 7 9 21 27 63 189 769 1373 2307 4119 5383 6921 9611 12357 16149 20763 28833 37071 48447 86499 145341 259497 1055837 3167511 7390859 9502533 22172577 28507599 66517731 199553193