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12080538112 = 2940957689
BaseRepresentation
bin10110100000000111…
…00110001000000000
31011011220122220212111
423100003212020000
5144220104204422
65314423505104
7605236610506
oct132003461000
934156586774
1012080538112
11513a1700a5
1224118b8194
1311a6a52b06
148285c4676
154aa87da77
hex2d00e6200

12080538112 has 40 divisors (see below), whose sum is σ = 24196916700. Its totient is φ = 6025396224.

The previous prime is 12080538103. The next prime is 12080538131. The reversal of 12080538112 is 21183508021.

It can be written as a sum of positive squares in 2 ways, for example, as 12050770176 + 29767936 = 109776^2 + 5456^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180564 + ... + 238252.

Almost surely, 212080538112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12080538112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12098458350).

12080538112 is an abundant number, since it is smaller than the sum of its proper divisors (12116378588).

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

12080538112 is an frugal number, since it uses more digits than its factorization.

12080538112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58116 (or 58100 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 31.

The spelling of 12080538112 in words is "twelve billion, eighty million, five hundred thirty-eight thousand, one hundred twelve".

Divisors: 1 2 4 8 16 32 64 128 256 409 512 818 1636 3272 6544 13088 26176 52352 57689 104704 115378 209408 230756 461512 923024 1846048 3692096 7384192 14768384 23594801 29536768 47189602 94379204 188758408 377516816 755033632 1510067264 3020134528 6040269056 12080538112