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22013010013 = 52094225957
BaseRepresentation
bin10100100000000100…
…111110000001011101
32002211010100202212011
4110200010332001131
5330040312310023
614040155111221
71406334332521
oct244004760135
962733322764
1022013010013
119376852265
124324142511
1320ca758917
1410cb7a9d81
1588c84d50d
hex52013e05d

22013010013 has 4 divisors (see below), whose sum is σ = 22017241180. Its totient is φ = 22008778848.

The previous prime is 22013010001. The next prime is 22013010023. The reversal of 22013010013 is 31001031022.

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 21520303204 + 492706809 = 146698^2 + 22197^2 .

It is a cyclic number.

It is not a de Polignac number, because 22013010013 - 25 = 22013009981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22013009975 and 22013010002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22013010023) 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, 2107770 + ... + 2118187.

It is an arithmetic number, because the mean of its divisors is an integer number (5504310295).

Almost surely, 222013010013 is an apocalyptic number.

It is an amenable number.

22013010013 is a deficient number, since it is larger than the sum of its proper divisors (4231167).

22013010013 is an equidigital number, since it uses as much as digits as its factorization.

22013010013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4231166.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 22013010013 its reverse (31001031022), we get a palindrome (53014041035).

The spelling of 22013010013 in words is "twenty-two billion, thirteen million, ten thousand, thirteen".

Divisors: 1 5209 4225957 22013010013