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12012981060 = 2235533777667
BaseRepresentation
bin10110011000000011…
…11000101101000100
31011000012112200000110
423030001320231010
5144100310343220
65304011513020
7603456440253
oct131401705504
934005480013
1012012981060
115105018523
1223b3158770
131195a5b222
1481d63a79a
154a4986be0
hex2cc078b44

12012981060 has 48 divisors (see below), whose sum is σ = 34271004096. Its totient is φ = 3143018112.

The previous prime is 12012981047. The next prime is 12012981073. The reversal of 12012981060 is 6018921021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12012981047) and next prime (12012981073).

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 1885654 + ... + 1892013.

It is an arithmetic number, because the mean of its divisors is an integer number (713979252).

Almost surely, 212012981060 is an apocalyptic number.

12012981060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012981060 is an abundant number, since it is smaller than the sum of its proper divisors (22258023036).

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

12012981060 is a wasteful number, since it uses less digits than its factorization.

12012981060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3777732 (or 3777730 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 30.

The spelling of 12012981060 in words is "twelve billion, twelve million, nine hundred eighty-one thousand, sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 53 60 106 159 212 265 318 530 636 795 1060 1590 3180 3777667 7555334 11333001 15110668 18888335 22666002 37776670 45332004 56665005 75553340 113330010 200216351 226660020 400432702 600649053 800865404 1001081755 1201298106 2002163510 2402596212 3003245265 4004327020 6006490530 12012981060