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23220102311 = 722411196549
BaseRepresentation
bin10101101000000001…
…101010010010100111
32012221020201102012022
4111220001222102213
5340023321233221
614400035213355
71451262420200
oct255001522247
965836642168
1023220102311
1199361625aa
12460044725b
132260864313
1411a3c245a7
1590d7da4ab
hex56806a4a7

23220102311 has 12 divisors (see below), whose sum is σ = 27022480200. Its totient is φ = 19894588560.

The previous prime is 23220102281. The next prime is 23220102313. The reversal of 23220102311 is 11320102232.

It is a de Polignac number, because none of the positive numbers 2k-23220102311 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 23220102311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23220102313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19865 + ... + 216413.

It is an arithmetic number, because the mean of its divisors is an integer number (2251873350).

Almost surely, 223220102311 is an apocalyptic number.

23220102311 is a deficient number, since it is larger than the sum of its proper divisors (3802377889).

23220102311 is a wasteful number, since it uses less digits than its factorization.

23220102311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198974 (or 198967 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 23220102311 its reverse (11320102232), we get a palindrome (34540204543).

The spelling of 23220102311 in words is "twenty-three billion, two hundred twenty million, one hundred two thousand, three hundred eleven".

Divisors: 1 7 49 2411 16877 118139 196549 1375843 9630901 473879639 3317157473 23220102311