Base | Representation |
---|---|
bin | 10110100010110011… |
… | …10100011110111001 |
3 | 1011020111012021121210 |
4 | 23101121310132321 |
5 | 144241401010210 |
6 | 5320552153333 |
7 | 605633001153 |
oct | 132131643671 |
9 | 34214167553 |
10 | 12103141305 |
11 | 51509a9222 |
12 | 2419398849 |
13 | 11ab638098 |
14 | 82b5c9ad3 |
15 | 4ac845e20 |
hex | 2d16747b9 |
12103141305 has 16 divisors (see below), whose sum is σ = 20206984320. Its totient is φ = 6174355968.
The previous prime is 12103141277. The next prime is 12103141307. The reversal of 12103141305 is 50314130121.
It is not a de Polignac number, because 12103141305 - 25 = 12103141273 is a prime.
It is not an unprimeable number, because it can be changed into a prime (12103141307) by changing a digit.
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 15 ways as a sum of consecutive naturals, for example, 17540440 + ... + 17541129.
It is an arithmetic number, because the mean of its divisors is an integer number (1262936520).
Almost surely, 212103141305 is an apocalyptic number.
12103141305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
12103141305 is a deficient number, since it is larger than the sum of its proper divisors (8103843015).
12103141305 is a wasteful number, since it uses less digits than its factorization.
12103141305 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 35081600.
The product of its (nonzero) digits is 360, while the sum is 21.
Adding to 12103141305 its reverse (50314130121), we get a palindrome (62417271426).
The spelling of 12103141305 in words is "twelve billion, one hundred three million, one hundred forty-one thousand, three hundred five".
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