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200223091 = 1789111919
BaseRepresentation
bin10111110111100…
…10100101110011
3111221202101110001
423323302211303
5402224114331
631511250431
74650603535
oct1373624563
9457671401
10200223091
11a3025632
1257079a17
1332634a03
141c83d855
15128a0561
hexbef2973

200223091 has 4 divisors (see below), whose sum is σ = 200336800. Its totient is φ = 200109384.

The previous prime is 200223077. The next prime is 200223103. The reversal of 200223091 is 190322002.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 200223091 - 27 = 200222963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200223011) 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, 54171 + ... + 57748.

It is an arithmetic number, because the mean of its divisors is an integer number (50084200).

Almost surely, 2200223091 is an apocalyptic number.

200223091 is a deficient number, since it is larger than the sum of its proper divisors (113709).

200223091 is a wasteful number, since it uses less digits than its factorization.

200223091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113708.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 200223091 is about 14150.0208833768. The cubic root of 200223091 is about 585.0209075246.

Adding to 200223091 its reverse (190322002), we get a palindrome (390545093).

The spelling of 200223091 in words is "two hundred million, two hundred twenty-three thousand, ninety-one".

Divisors: 1 1789 111919 200223091