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23101344220 = 225412687131
BaseRepresentation
bin10101100000111100…
…101000100111011100
32012121222020212201111
4111200330220213130
5334302421003340
614340153551404
71445321120533
oct254074504734
965558225644
1023101344220
119885119919
124588715564
132242083766
14119214d31a
1590317caea
hex560f289dc

23101344220 has 36 divisors (see below), whose sum is σ = 49724994312. Its totient is φ = 9015145600.

The previous prime is 23101344197. The next prime is 23101344239. The reversal of 23101344220 is 2244310132.

It is a junction number, because it is equal to n+sod(n) for n = 23101344191 and 23101344200.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 309946 + ... + 377185.

It is an arithmetic number, because the mean of its divisors is an integer number (1381249842).

Almost surely, 223101344220 is an apocalyptic number.

23101344220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23101344220 is an abundant number, since it is smaller than the sum of its proper divisors (26623650092).

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

23101344220 is a wasteful number, since it uses less digits than its factorization.

23101344220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687222 (or 687179 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 23101344220 its reverse (2244310132), we get a palindrome (25345654352).

The spelling of 23101344220 in words is "twenty-three billion, one hundred one million, three hundred forty-four thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 41 82 164 205 410 820 1681 3362 6724 8405 16810 33620 687131 1374262 2748524 3435655 6871310 13742620 28172371 56344742 112689484 140861855 281723710 563447420 1155067211 2310134422 4620268844 5775336055 11550672110 23101344220