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12223041320 = 235743653719
BaseRepresentation
bin10110110001000110…
…01100111100101000
31011112211210211112002
423120203030330220
5200013044310240
65340514110132
7611620064660
oct133043147450
934484724462
1012223041320
115202651946
12245157b348
1311ca428639
1483d4bb1a0
154b812bd15
hex2d88ccf28

12223041320 has 32 divisors (see below), whose sum is σ = 31430678400. Its totient is φ = 4190756928.

The previous prime is 12223041301. The next prime is 12223041421. The reversal of 12223041320 is 2314032221.

It is a super-2 number, since 2×122230413202 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12223041292 and 12223041301.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21826580 + ... + 21827139.

It is an arithmetic number, because the mean of its divisors is an integer number (982208700).

Almost surely, 212223041320 is an apocalyptic number.

12223041320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12223041320 is an abundant number, since it is smaller than the sum of its proper divisors (19207637080).

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

12223041320 is a wasteful number, since it uses less digits than its factorization.

12223041320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43653737 (or 43653733 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12223041320 its reverse (2314032221), we get a palindrome (14537073541).

Subtracting from 12223041320 its reverse (2314032221), we obtain a palindrome (9909009099).

The spelling of 12223041320 in words is "twelve billion, two hundred twenty-three million, forty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 43653719 87307438 174614876 218268595 305576033 349229752 436537190 611152066 873074380 1222304132 1527880165 1746148760 2444608264 3055760330 6111520660 12223041320