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201244201 = 1631234627
BaseRepresentation
bin10111111111010…
…11111000101001
3112000200021010221
423333223320221
5403004303301
631545210041
74662355534
oct1377537051
9460607127
10201244201
11a3662824
1257490921
1332901712
141ca27a1b
1512a02da1
hexbfebe29

201244201 has 4 divisors (see below), whose sum is σ = 202478992. Its totient is φ = 200009412.

The previous prime is 201244189. The next prime is 201244213. The reversal of 201244201 is 102442102.

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 an interprime number because it is at equal distance from previous prime (201244189) and next prime (201244213).

It is a cyclic number.

It is not a de Polignac number, because 201244201 - 29 = 201243689 is a prime.

It is a super-2 number, since 2×2012442012 = 80998456872256802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201244231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 617151 + ... + 617476.

It is an arithmetic number, because the mean of its divisors is an integer number (50619748).

Almost surely, 2201244201 is an apocalyptic number.

It is an amenable number.

201244201 is a deficient number, since it is larger than the sum of its proper divisors (1234791).

201244201 is a wasteful number, since it uses less digits than its factorization.

201244201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234790.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 201244201 is about 14186.0565697448. The cubic root of 201244201 is about 586.0137301819.

Adding to 201244201 its reverse (102442102), we get a palindrome (303686303).

The spelling of 201244201 in words is "two hundred one million, two hundred forty-four thousand, two hundred one".

Divisors: 1 163 1234627 201244201