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12110199980 = 2252399252401
BaseRepresentation
bin10110100011101001…
…01111110010101100
31011020222110220022012
423101310233302230
5144300202344410
65321403340352
7606050000324
oct132164576254
934228426265
1012110199980
11515498a53a
12241b8216b8
1311acc39c08
1482c506284
154ad28c605
hex2d1d2fcac

12110199980 has 24 divisors (see below), whose sum is σ = 25442121600. Its totient is φ = 4842041600.

The previous prime is 12110199961. The next prime is 12110200021. The reversal of 12110199980 is 8999101121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78221 + ... + 174180.

It is an arithmetic number, because the mean of its divisors is an integer number (1060088400).

Almost surely, 212110199980 is an apocalyptic number.

12110199980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12110199980 is an abundant number, since it is smaller than the sum of its proper divisors (13331921620).

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

12110199980 is a wasteful number, since it uses less digits than its factorization.

12110199980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254809 (or 254807 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 41.

The spelling of 12110199980 in words is "twelve billion, one hundred ten million, one hundred ninety-nine thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 2399 4798 9596 11995 23990 47980 252401 504802 1009604 1262005 2524010 5048020 605509999 1211019998 2422039996 3027549995 6055099990 12110199980