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2720353213 is a prime number
BaseRepresentation
bin1010001000100101…
…0100101110111101
321000120211021001201
42202021110232331
521032402300323
61125534335501
7124261422634
oct24211245675
97016737051
102720353213
1111766286a6
1263b05a591
13344791876
141bb41051b
1510dc558ad
hexa2254bbd

2720353213 has 2 divisors, whose sum is σ = 2720353214. Its totient is φ = 2720353212.

The previous prime is 2720353193. The next prime is 2720353319. The reversal of 2720353213 is 3123530272.

2720353213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2512214884 + 208138329 = 50122^2 + 14427^2 .

It is a cyclic number.

It is not a de Polignac number, because 2720353213 - 225 = 2686798781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2720351213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1360176606 + 1360176607.

It is an arithmetic number, because the mean of its divisors is an integer number (1360176607).

Almost surely, 22720353213 is an apocalyptic number.

It is an amenable number.

2720353213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2720353213 is an equidigital number, since it uses as much as digits as its factorization.

2720353213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 2720353213 is about 52157.0054067524. The cubic root of 2720353213 is about 1395.9668298413.

Adding to 2720353213 its reverse (3123530272), we get a palindrome (5843883485).

The spelling of 2720353213 in words is "two billion, seven hundred twenty million, three hundred fifty-three thousand, two hundred thirteen".