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199027569 = 31310946819
BaseRepresentation
bin10111101110011…
…10101101110001
3111212111122111110
423313032231301
5401422340234
631425503533
74634464206
oct1367165561
9455448443
10199027569
11a23893a4
12567a1ba9
13323067c0
141c60bcad
15127161e9
hexbdceb71

199027569 has 16 divisors (see below), whose sum is σ = 288411200. Its totient is φ = 121352256.

The previous prime is 199027553. The next prime is 199027573. The reversal of 199027569 is 965720991.

It is not a de Polignac number, because 199027569 - 24 = 199027553 is a prime.

It is a super-2 number, since 2×1990275692 = 79223946444099522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199027519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19159 + ... + 27660.

It is an arithmetic number, because the mean of its divisors is an integer number (18025700).

Almost surely, 2199027569 is an apocalyptic number.

It is an amenable number.

199027569 is a deficient number, since it is larger than the sum of its proper divisors (89383631).

199027569 is a wasteful number, since it uses less digits than its factorization.

199027569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46944.

The product of its (nonzero) digits is 306180, while the sum is 48.

The square root of 199027569 is about 14107.7131031220. The cubic root of 199027569 is about 583.8542055288.

The spelling of 199027569 in words is "one hundred ninety-nine million, twenty-seven thousand, five hundred sixty-nine".

Divisors: 1 3 13 39 109 327 1417 4251 46819 140457 608647 1825941 5103271 15309813 66342523 199027569