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2201232001 = 10920194789
BaseRepresentation
bin1000001100110100…
…0010001010000001
312200102000011122011
42003031002022001
514002003411001
61002232012521
7105356110003
oct20315021201
95612004564
102201232001
11a2a5a1201
12515231141
13291073357
1416c4bc373
15cd3b1d51
hex83342281

2201232001 has 4 divisors (see below), whose sum is σ = 2221426900. Its totient is φ = 2181037104.

The previous prime is 2201231899. The next prime is 2201232017. The reversal of 2201232001 is 1002321022.

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

It can be written as a sum of positive squares in 2 ways, for example, as 957964401 + 1243267600 = 30951^2 + 35260^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201232001 - 27 = 2201231873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2201232071) 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, 10097286 + ... + 10097503.

It is an arithmetic number, because the mean of its divisors is an integer number (555356725).

Almost surely, 22201232001 is an apocalyptic number.

It is an amenable number.

2201232001 is a deficient number, since it is larger than the sum of its proper divisors (20194899).

2201232001 is a wasteful number, since it uses less digits than its factorization.

2201232001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20194898.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2201232001 is about 46917.2889348905. The cubic root of 2201232001 is about 1300.8341788142.

Adding to 2201232001 its reverse (1002321022), we get a palindrome (3203553023).

The spelling of 2201232001 in words is "two billion, two hundred one million, two hundred thirty-two thousand, one".

Divisors: 1 109 20194789 2201232001