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2120223213 = 32235580357
BaseRepresentation
bin111111001100000…
…0000100111101101
312110202120111110200
41332120000213231
513320234120323
6550215424113
7103353412533
oct17630004755
95422514420
102120223213
119988a1099
124b2085039
1327a34ba64
14161832153
15c620e443
hex7e6009ed

2120223213 has 6 divisors (see below), whose sum is σ = 3062544654. Its totient is φ = 1413482136.

The previous prime is 2120223211. The next prime is 2120223239. The reversal of 2120223213 is 3123220212.

2120223213 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1518894729 + 601328484 = 38973^2 + 24522^2 .

It is not a de Polignac number, because 2120223213 - 21 = 2120223211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120223211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117790170 + ... + 117790187.

It is an arithmetic number, because the mean of its divisors is an integer number (510424109).

Almost surely, 22120223213 is an apocalyptic number.

It is an amenable number.

2120223213 is a deficient number, since it is larger than the sum of its proper divisors (942321441).

2120223213 is a wasteful number, since it uses less digits than its factorization.

2120223213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235580363 (or 235580360 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2120223213 is about 46045.8816073707. The cubic root of 2120223213 is about 1284.6767420557.

Adding to 2120223213 its reverse (3123220212), we get a palindrome (5243443425).

The spelling of 2120223213 in words is "two billion, one hundred twenty million, two hundred twenty-three thousand, two hundred thirteen".

Divisors: 1 3 9 235580357 706741071 2120223213