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2231202013 = 30731123369
BaseRepresentation
bin1000010011111101…
…0111000011011101
312202111101210202121
42010333113003131
514032141431023
61005222222541
7106201622065
oct20477270335
95674353677
102231202013
11a45501107
12523284a51
132973377a1
141724803a5
15d0d31d5d
hex84fd70dd

2231202013 has 8 divisors (see below), whose sum is σ = 2245763520. Its totient is φ = 2216688480.

The previous prime is 2231202011. The next prime is 2231202059. The reversal of 2231202013 is 3102021322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2231202013 - 21 = 2231202011 is a prime.

It is a super-3 number, since 3×22312020133 (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231202011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83793 + ... + 107161.

It is an arithmetic number, because the mean of its divisors is an integer number (280720440).

Almost surely, 22231202013 is an apocalyptic number.

It is an amenable number.

2231202013 is a deficient number, since it is larger than the sum of its proper divisors (14561507).

2231202013 is a wasteful number, since it uses less digits than its factorization.

2231202013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23987.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2231202013 is about 47235.6011182244. The cubic root of 2231202013 is about 1306.7112526942.

Adding to 2231202013 its reverse (3102021322), we get a palindrome (5333223335).

The spelling of 2231202013 in words is "two billion, two hundred thirty-one million, two hundred two thousand, thirteen".

Divisors: 1 307 311 23369 95477 7174283 7267759 2231202013