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200521113 = 31331165857
BaseRepresentation
bin10111111001110…
…11010110011001
3111222022112020220
423330323112121
5402313133423
631521510253
74653254442
oct1374732631
9458275226
10200521113
11a3209531
12571a2389
133270a560
141c8ba2c9
151290d9e3
hexbf3b599

200521113 has 16 divisors (see below), whose sum is σ = 297217536. Its totient is φ = 119416320.

The previous prime is 200521081. The next prime is 200521141. The reversal of 200521113 is 311125002.

It is not a de Polignac number, because 200521113 - 25 = 200521081 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200521092 and 200521101.

It is not an unprimeable number, because it can be changed into a prime (200521163) 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, 81720 + ... + 84137.

It is an arithmetic number, because the mean of its divisors is an integer number (18576096).

Almost surely, 2200521113 is an apocalyptic number.

It is an amenable number.

200521113 is a deficient number, since it is larger than the sum of its proper divisors (96696423).

200521113 is a wasteful number, since it uses less digits than its factorization.

200521113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165904.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 200521113 is about 14160.5477648289. The cubic root of 200521113 is about 585.3110216971.

Adding to 200521113 its reverse (311125002), we get a palindrome (511646115).

The spelling of 200521113 in words is "two hundred million, five hundred twenty-one thousand, one hundred thirteen".

Divisors: 1 3 13 31 39 93 403 1209 165857 497571 2156141 5141567 6468423 15424701 66840371 200521113