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23132330220 = 2235675754311
BaseRepresentation
bin10101100010110010…
…110101100011101100
32012201010120010112010
4111202302311203230
5334333334031340
614343222041220
71446145363656
oct254262654354
965633503463
1023132330220
1198a066308a
124596b79210
13224861247c
1411962d76d6
15905c4db80
hex562cb58ec

23132330220 has 48 divisors (see below), whose sum is σ = 65737260288. Its totient is φ = 6076551360.

The previous prime is 23132330189. The next prime is 23132330227. The reversal of 23132330220 is 2203323132.

It is not an unprimeable number, because it can be changed into a prime (23132330227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2873136 + ... + 2881175.

It is an arithmetic number, because the mean of its divisors is an integer number (1369526256).

Almost surely, 223132330220 is an apocalyptic number.

23132330220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23132330220 is an abundant number, since it is smaller than the sum of its proper divisors (42604930068).

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

23132330220 is a wasteful number, since it uses less digits than its factorization.

23132330220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5754390 (or 5754388 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 23132330220 its reverse (2203323132), we get a palindrome (25335653352).

The spelling of 23132330220 in words is "twenty-three billion, one hundred thirty-two million, three hundred thirty thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 67 134 201 268 335 402 670 804 1005 1340 2010 4020 5754311 11508622 17262933 23017244 28771555 34525866 57543110 69051732 86314665 115086220 172629330 345258660 385538837 771077674 1156616511 1542155348 1927694185 2313233022 3855388370 4626466044 5783082555 7710776740 11566165110 23132330220