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200805319 = 11131973907
BaseRepresentation
bin10111111100000…
…00101111000111
3111222211222010001
423332000233013
5402401232234
631531542131
74655550151
oct1376005707
9458758101
10200805319
11a3393010
12572ba947
13327a9a20
141c951ad1
1512967d14
hexbf80bc7

200805319 has 16 divisors (see below), whose sum is σ = 248330880. Its totient is φ = 159636960.

The previous prime is 200805317. The next prime is 200805337. The reversal of 200805319 is 913508002.

It is a cyclic number.

It is not a de Polignac number, because 200805319 - 21 = 200805317 is a prime.

It is a super-2 number, since 2×2008053192 = 80645552277383522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200805317) 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, 34237 + ... + 39670.

It is an arithmetic number, because the mean of its divisors is an integer number (15520680).

Almost surely, 2200805319 is an apocalyptic number.

200805319 is a deficient number, since it is larger than the sum of its proper divisors (47525561).

200805319 is a wasteful number, since it uses less digits than its factorization.

200805319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73950.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 200805319 is about 14170.5793459548. The cubic root of 200805319 is about 585.5874188185.

The spelling of 200805319 in words is "two hundred million, eight hundred five thousand, three hundred nineteen".

Divisors: 1 11 13 19 143 209 247 2717 73907 812977 960791 1404233 10568701 15446563 18255029 200805319