Search a number
-
+
23210111213 = 47948455347
BaseRepresentation
bin10101100111011011…
…100011000011101101
32012220112220210222122
4111213123203003231
5340013242024323
614355041122325
71451111455502
oct254733430355
965815823878
1023210111213
1199305590a3
1245b90293a5
13225b776823
1411a27834a9
1590c9b4ec8
hex5676e30ed

23210111213 has 4 divisors (see below), whose sum is σ = 23258567040. Its totient is φ = 23161655388.

The previous prime is 23210111207. The next prime is 23210111273. The reversal of 23210111213 is 31211101232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23210111213 - 214 = 23210094829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23210111191 and 23210111200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23210111273) 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, 24227195 + ... + 24228152.

It is an arithmetic number, because the mean of its divisors is an integer number (5814641760).

Almost surely, 223210111213 is an apocalyptic number.

It is an amenable number.

23210111213 is a deficient number, since it is larger than the sum of its proper divisors (48455827).

23210111213 is an equidigital number, since it uses as much as digits as its factorization.

23210111213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48455826.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 23210111213 its reverse (31211101232), we get a palindrome (54421212445).

The spelling of 23210111213 in words is "twenty-three billion, two hundred ten million, one hundred eleven thousand, two hundred thirteen".

Divisors: 1 479 48455347 23210111213