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200238305 = 540047661
BaseRepresentation
bin10111110111101…
…10010011100001
3111221210011022112
423323312103201
5402230111210
631511445105
74650666101
oct1373662341
9457704275
10200238305
11a3036003
1257086795
133263b907
141c845201
15128a4d05
hexbef64e1

200238305 has 4 divisors (see below), whose sum is σ = 240285972. Its totient is φ = 160190640.

The previous prime is 200238281. The next prime is 200238317. The reversal of 200238305 is 503832002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52591504 + 147646801 = 7252^2 + 12151^2 .

It is not a de Polignac number, because 200238305 - 214 = 200221921 is a prime.

It is a Duffinian 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, 20023826 + ... + 20023835.

It is an arithmetic number, because the mean of its divisors is an integer number (60071493).

Almost surely, 2200238305 is an apocalyptic number.

It is an amenable number.

200238305 is a deficient number, since it is larger than the sum of its proper divisors (40047667).

200238305 is an equidigital number, since it uses as much as digits as its factorization.

200238305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40047666.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 200238305 is about 14150.5584695446. The cubic root of 200238305 is about 585.0357248010.

The spelling of 200238305 in words is "two hundred million, two hundred thirty-eight thousand, three hundred five".

Divisors: 1 5 40047661 200238305