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200521072 = 2473171679
BaseRepresentation
bin10111111001110…
…11010101110000
3111222022112012101
423330323111300
5402313133242
631521510144
74653254353
oct1374732560
9458275171
10200521072
11a32094a4
12571a2354
133270a52b
141c8ba29a
151290d9b7
hexbf3b570

200521072 has 20 divisors (see below), whose sum is σ = 393833920. Its totient is φ = 98886528.

The previous prime is 200521067. The next prime is 200521081. The reversal of 200521072 is 270125002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84672 + ... + 87007.

It is an arithmetic number, because the mean of its divisors is an integer number (19691696).

Almost surely, 2200521072 is an apocalyptic number.

It is an amenable number.

200521072 is a deficient number, since it is larger than the sum of its proper divisors (193312848).

200521072 is a wasteful number, since it uses less digits than its factorization.

200521072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171760 (or 171754 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 200521072 is about 14160.5463171447. The cubic root of 200521072 is about 585.3109818048.

Adding to 200521072 its reverse (270125002), we get a palindrome (470646074).

The spelling of 200521072 in words is "two hundred million, five hundred twenty-one thousand, seventy-two".

Divisors: 1 2 4 8 16 73 146 292 584 1168 171679 343358 686716 1373432 2746864 12532567 25065134 50130268 100260536 200521072