Base | Representation |
---|---|
bin | 10110100010110101… |
… | …11000100001101110 |
3 | 1011020111201102221100 |
4 | 23101122320201232 |
5 | 144241433420024 |
6 | 5321002143530 |
7 | 605635241550 |
oct | 132132704156 |
9 | 34214642840 |
10 | 12103420014 |
11 | 5151079664 |
12 | 24194b1ba6 |
13 | 11ab704bba |
14 | 82b65d4d0 |
15 | 4ac89d7c9 |
hex | 2d16b886e |
12103420014 has 96 divisors (see below), whose sum is σ = 31590074880. Its totient is φ = 3271720896.
The previous prime is 12103420013. The next prime is 12103420027. The reversal of 12103420014 is 41002430121.
12103420014 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12103420013) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2039119 + ... + 2045045.
It is an arithmetic number, because the mean of its divisors is an integer number (329063280).
Almost surely, 212103420014 is an apocalyptic number.
12103420014 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 12103420014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15795037440).
12103420014 is an abundant number, since it is smaller than the sum of its proper divisors (19486654866).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12103420014 is a wasteful number, since it uses less digits than its factorization.
12103420014 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6814 (or 6811 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
Adding to 12103420014 its reverse (41002430121), we get a palindrome (53105850135).
The spelling of 12103420014 in words is "twelve billion, one hundred three million, four hundred twenty thousand, fourteen".
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