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23101010220 = 2235385016837
BaseRepresentation
bin10101100000111011…
…010111000100101100
32012121221121220120010
4111200323113010230
5334302324311340
614340142453220
71445315230011
oct254073270454
965557556503
1023101010220
119884a10992
124588594210
132241c97722
1411920a3708
15903113b80
hex560ed712c

23101010220 has 24 divisors (see below), whose sum is σ = 64682828784. Its totient is φ = 6160269376.

The previous prime is 23101010209. The next prime is 23101010243. The reversal of 23101010220 is 2201010132.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 23101010196 and 23101010205.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 192508359 + ... + 192508478.

It is an arithmetic number, because the mean of its divisors is an integer number (2695117866).

Almost surely, 223101010220 is an apocalyptic number.

23101010220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23101010220 is an abundant number, since it is smaller than the sum of its proper divisors (41581818564).

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

23101010220 is a wasteful number, since it uses less digits than its factorization.

23101010220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385016849 (or 385016847 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 23101010220 its reverse (2201010132), we get a palindrome (25302020352).

The spelling of 23101010220 in words is "twenty-three billion, one hundred one million, ten thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 385016837 770033674 1155050511 1540067348 1925084185 2310101022 3850168370 4620202044 5775252555 7700336740 11550505110 23101010220