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23013221230 = 25191091111213
BaseRepresentation
bin10101011011101100…
…011110001101101110
32012101211102202201001
4111123230132031232
5334112341034410
614323325110514
71443201103306
oct253354361556
965354382631
1023013221230
11983a3aa7aa
1245630b843a
132229a3ac8c
141184570606
158ea57233a
hex55bb1e36e

23013221230 has 32 divisors (see below), whose sum is σ = 44004074400. Its totient is φ = 8640784512.

The previous prime is 23013221221. The next prime is 23013221263. The reversal of 23013221230 is 3212231032.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 23013221198 and 23013221207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534897 + ... + 576316.

It is an arithmetic number, because the mean of its divisors is an integer number (1375127325).

Almost surely, 223013221230 is an apocalyptic number.

23013221230 is a deficient number, since it is larger than the sum of its proper divisors (20990853170).

23013221230 is a wasteful number, since it uses less digits than its factorization.

23013221230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111348.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23013221230 its reverse (3212231032), we get a palindrome (26225452262).

The spelling of 23013221230 in words is "twenty-three billion, thirteen million, two hundred twenty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 19 38 95 109 190 218 545 1090 2071 4142 10355 20710 1111213 2222426 5556065 11112130 21113047 42226094 105565235 121122217 211130470 242244434 605611085 1211222170 2301322123 4602644246 11506610615 23013221230