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23011302222 = 2322731468109
BaseRepresentation
bin10101011011100101…
…001001101101001110
32012101200211021022200
4111123211021231032
5334111343132342
614323220022330
71443145561446
oct253345115516
965350737280
1023011302222
119839309a47
1245625319a6
13222951867c
1411841d1126
158ea2e394c
hex55b949b4e

23011302222 has 24 divisors (see below), whose sum is σ = 49876184280. Its totient is φ = 7667609040.

The previous prime is 23011302217. The next prime is 23011302229. The reversal of 23011302222 is 22220311032.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23011302195 and 23011302204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23011302229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184897 + ... + 283212.

It is an arithmetic number, because the mean of its divisors is an integer number (2078174345).

Almost surely, 223011302222 is an apocalyptic number.

23011302222 is an abundant number, since it is smaller than the sum of its proper divisors (26864882058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23011302222 is a wasteful number, since it uses less digits than its factorization.

23011302222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470848 (or 470845 counting only the distinct ones).

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

Adding to 23011302222 its reverse (22220311032), we get a palindrome (45231613254).

The spelling of 23011302222 in words is "twenty-three billion, eleven million, three hundred two thousand, two hundred twenty-two".

Divisors: 1 2 3 6 9 18 2731 5462 8193 16386 24579 49158 468109 936218 1404327 2808654 4212981 8425962 1278405679 2556811358 3835217037 7670434074 11505651111 23011302222