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200320897 = 728617271
BaseRepresentation
bin10111111000010…
…10011110000001
3111221221100121111
423330022132001
5402240232042
631513323321
74651461640
oct1374123601
9457840544
10200320897
11a3092067
1257106541
133266a39a
141c867357
15128be517
hexbf0a781

200320897 has 4 divisors (see below), whose sum is σ = 228938176. Its totient is φ = 171703620.

The previous prime is 200320847. The next prime is 200320903. The reversal of 200320897 is 798023002.

200320897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 200320897 - 223 = 191932289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200320847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14308629 + ... + 14308642.

It is an arithmetic number, because the mean of its divisors is an integer number (57234544).

Almost surely, 2200320897 is an apocalyptic number.

It is an amenable number.

200320897 is a deficient number, since it is larger than the sum of its proper divisors (28617279).

200320897 is an equidigital number, since it uses as much as digits as its factorization.

200320897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28617278.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 200320897 is about 14153.4764987264. The cubic root of 200320897 is about 585.1161500202.

Adding to 200320897 its reverse (798023002), we get a palindrome (998343899).

The spelling of 200320897 in words is "two hundred million, three hundred twenty thousand, eight hundred ninety-seven".

Divisors: 1 7 28617271 200320897