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201200331 = 367066777
BaseRepresentation
bin10111111111000…
…01001011001011
3112000121000222010
423333201023023
5403001402311
631544231003
74662113613
oct1377411313
9460530863
10201200331
11a3632872
125746b463
13328b7767
141ca15a43
15129e4da6
hexbfe12cb

201200331 has 4 divisors (see below), whose sum is σ = 268267112. Its totient is φ = 134133552.

The previous prime is 201200327. The next prime is 201200333. The reversal of 201200331 is 133002102.

It is a happy number.

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

It is not a de Polignac number, because 201200331 - 22 = 201200327 is a prime.

It is a super-2 number, since 2×2012003312 = 80963146389019122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201200333) by changing a digit.

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, 33533386 + ... + 33533391.

It is an arithmetic number, because the mean of its divisors is an integer number (67066778).

Almost surely, 2201200331 is an apocalyptic number.

201200331 is a deficient number, since it is larger than the sum of its proper divisors (67066781).

201200331 is an equidigital number, since it uses as much as digits as its factorization.

201200331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67066780.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 201200331 is about 14184.5102488595. The cubic root of 201200331 is about 585.9711446224.

Adding to 201200331 its reverse (133002102), we get a palindrome (334202433).

The spelling of 201200331 in words is "two hundred one million, two hundred thousand, three hundred thirty-one".

Divisors: 1 3 67066777 201200331