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200725928 = 23131930057
BaseRepresentation
bin10111111011011…
…01010110101000
3111222200221012122
423331231112220
5402341212203
631530130412
74655066534
oct1375552650
9458627178
10200725928
11a33393a7
1257280a08
133277c850
141c930bc4
151294e538
hexbf6d5a8

200725928 has 16 divisors (see below), whose sum is σ = 405312180. Its totient is φ = 92642688.

The previous prime is 200725897. The next prime is 200725933. The reversal of 200725928 is 829527002.

It can be written as a sum of positive squares in 2 ways, for example, as 199430884 + 1295044 = 14122^2 + 1138^2 .

It is a super-2 number, since 2×2007259282 = 80581796342922368, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

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, 964925 + ... + 965132.

Almost surely, 2200725928 is an apocalyptic number.

It is an amenable number.

200725928 is an abundant number, since it is smaller than the sum of its proper divisors (204586252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200725928 is a wasteful number, since it uses less digits than its factorization.

200725928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1930076 (or 1930072 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 200725928 is about 14167.7778074051. Note that the first 3 decimals coincide. The cubic root of 200725928 is about 585.5102354398.

The spelling of 200725928 in words is "two hundred million, seven hundred twenty-five thousand, nine hundred twenty-eight".

Divisors: 1 2 4 8 13 26 52 104 1930057 3860114 7720228 15440456 25090741 50181482 100362964 200725928