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201214641 = 367071547
BaseRepresentation
bin10111111111001…
…00101010110001
3112000121202121010
423333210222301
5403002332031
631544421133
74662203415
oct1377445261
9460552533
10201214641
11a36425a1
12574777a9
13328c1124
141ca1ad45
15129e9246
hexbfe4ab1

201214641 has 4 divisors (see below), whose sum is σ = 268286192. Its totient is φ = 134143092.

The previous prime is 201214631. The next prime is 201214681. The reversal of 201214641 is 146412102.

It is a happy number.

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 not a de Polignac number, because 201214641 - 26 = 201214577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (201214631) 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, 33535771 + ... + 33535776.

It is an arithmetic number, because the mean of its divisors is an integer number (67071548).

Almost surely, 2201214641 is an apocalyptic number.

It is an amenable number.

201214641 is a deficient number, since it is larger than the sum of its proper divisors (67071551).

201214641 is an equidigital number, since it uses as much as digits as its factorization.

201214641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67071550.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 201214641 is about 14185.0146633692. The cubic root of 201214641 is about 585.9850363296.

Adding to 201214641 its reverse (146412102), we get a palindrome (347626743).

It can be divided in two parts, 2012 and 14641, that added together give a triangular number (16653 = T182).

The spelling of 201214641 in words is "two hundred one million, two hundred fourteen thousand, six hundred forty-one".

Divisors: 1 3 67071547 201214641