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13467912357889 = 1121025310855853
BaseRepresentation
bin1100001111111011111000…
…1000011100100000000001
31202200112000222011010112201
43003332332020130200001
53231124241030423024
644351023514153201
72560011265125043
oct303767610344001
952615028133481
1013467912357889
114322789466800
121616208722801
1376903208c0c2
14347bc984da93
151854e826a744
hexc3fbe21c801

13467912357889 has 12 divisors (see below), whose sum is σ = 14805018279828. Its totient is φ = 12242361417440.

The previous prime is 13467912357871. The next prime is 13467912357901. The reversal of 13467912357889 is 98875321976431.

It can be written as a sum of positive squares in 2 ways, for example, as 2344573440000 + 11123338917889 = 1531200^2 + 3335167^2 .

It is not a de Polignac number, because 13467912357889 - 25 = 13467912357857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13467912357089) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4187314 + ... + 6668539.

It is an arithmetic number, because the mean of its divisors is an integer number (1233751523319).

Almost surely, 213467912357889 is an apocalyptic number.

It is an amenable number.

13467912357889 is a deficient number, since it is larger than the sum of its proper divisors (1337105921939).

13467912357889 is a wasteful number, since it uses less digits than its factorization.

13467912357889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10866128 (or 10866117 counting only the distinct ones).

The product of its digits is 548674560, while the sum is 73.

The spelling of 13467912357889 in words is "thirteen trillion, four hundred sixty-seven billion, nine hundred twelve million, three hundred fifty-seven thousand, eight hundred eighty-nine".

Divisors: 1 11 121 10253 112783 1240613 10855853 119414383 1313558213 111305060809 1224355668899 13467912357889