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23030203211 = 31742909781
BaseRepresentation
bin10101011100101101…
…010000001101001011
32012110000101112121022
4111130231100031023
5334131213000321
614325133103055
71443465332411
oct253455201513
965400345538
1023030203211
119848a495a4
124568927a8b
1322304057a2
1411869112b1
158ebcc8dab
hex55cb5034b

23030203211 has 4 divisors (see below), whose sum is σ = 23773113024. Its totient is φ = 22287293400.

The previous prime is 23030203171. The next prime is 23030203213. The reversal of 23030203211 is 11230203032.

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

It is a cyclic number.

It is not a de Polignac number, because 23030203211 - 214 = 23030186827 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23030203211.

It is not an unprimeable number, because it can be changed into a prime (23030203213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371454860 + ... + 371454921.

It is an arithmetic number, because the mean of its divisors is an integer number (5943278256).

Almost surely, 223030203211 is an apocalyptic number.

23030203211 is a deficient number, since it is larger than the sum of its proper divisors (742909813).

23030203211 is an equidigital number, since it uses as much as digits as its factorization.

23030203211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742909812.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 23030203211 its reverse (11230203032), we get a palindrome (34260406243).

The spelling of 23030203211 in words is "twenty-three billion, thirty million, two hundred three thousand, two hundred eleven".

Divisors: 1 31 742909781 23030203211