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12263423788 = 2271139816311
BaseRepresentation
bin10110110101111010…
…01111111100101100
31011122122210110212001
423122331033330230
5200103414030123
65344515422044
7612620245060
oct133275177454
934578713761
1012263423788
115223423890
122462bb4924
1312058c72a5
148449cdaa0
154bb9570ad
hex2daf4ff2c

12263423788 has 24 divisors (see below), whose sum is σ = 26756561664. Its totient is φ = 4777957200.

The previous prime is 12263423699. The next prime is 12263423833. The reversal of 12263423788 is 88732436221.

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, 19907848 + ... + 19908463.

It is an arithmetic number, because the mean of its divisors is an integer number (1114856736).

Almost surely, 212263423788 is an apocalyptic number.

It is an amenable number.

12263423788 is an abundant number, since it is smaller than the sum of its proper divisors (14493137876).

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

12263423788 is a wasteful number, since it uses less digits than its factorization.

12263423788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39816333 (or 39816331 counting only the distinct ones).

The product of its digits is 774144, while the sum is 46.

The spelling of 12263423788 in words is "twelve billion, two hundred sixty-three million, four hundred twenty-three thousand, seven hundred eighty-eight".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 39816311 79632622 159265244 278714177 437979421 557428354 875958842 1114856708 1751917684 3065855947 6131711894 12263423788