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12181482044 = 2210927939179
BaseRepresentation
bin10110101100001001…
…01010101000111100
31011102221121101220122
423112010222220330
5144421424411134
65332431234112
7610603613624
oct132604525074
934387541818
1012181482044
115191146836
12243b678938
1311c1937154
14837b7d884
154b466d02e
hex2d612aa3c

12181482044 has 12 divisors (see below), whose sum is σ = 21513168600. Its totient is φ = 6034862448.

The previous prime is 12181482031. The next prime is 12181482059. The reversal of 12181482044 is 44028418121.

It is a junction number, because it is equal to n+sod(n) for n = 12181481995 and 12181482013.

It is a congruent number.

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, 13969154 + ... + 13970025.

It is an arithmetic number, because the mean of its divisors is an integer number (1792764050).

Almost surely, 212181482044 is an apocalyptic number.

It is an amenable number.

12181482044 is a deficient number, since it is larger than the sum of its proper divisors (9331686556).

12181482044 is a wasteful number, since it uses less digits than its factorization.

12181482044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27939292 (or 27939290 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 35.

The spelling of 12181482044 in words is "twelve billion, one hundred eighty-one million, four hundred eighty-two thousand, forty-four".

Divisors: 1 2 4 109 218 436 27939179 55878358 111756716 3045370511 6090741022 12181482044