Base | Representation |
---|---|
bin | 10110100010110011… |
… | …01010011011101100 |
3 | 1011020111010012011011 |
4 | 23101121222123230 |
5 | 144241343201030 |
6 | 5320551235004 |
7 | 605632440145 |
oct | 132131523354 |
9 | 34214105134 |
10 | 12103100140 |
11 | 51509802aa |
12 | 2419378a64 |
13 | 11ab622421 |
14 | 82b5b8acc |
15 | 4ac838b2a |
hex | 2d166a6ec |
12103100140 has 48 divisors (see below), whose sum is σ = 26070206400. Its totient is φ = 4717955840.
The previous prime is 12103100123. The next prime is 12103100159. The reversal of 12103100140 is 4100130121.
It is a self number, because there is not a number n which added to its sum of digits gives 12103100140.
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, 119625 + ... + 196255.
It is an arithmetic number, because the mean of its divisors is an integer number (543129300).
Almost surely, 212103100140 is an apocalyptic number.
12103100140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12103100140 is an abundant number, since it is smaller than the sum of its proper divisors (13967106260).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12103100140 is a wasteful number, since it uses less digits than its factorization.
12103100140 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 76842 (or 76840 counting only the distinct ones).
The product of its (nonzero) digits is 24, while the sum is 13.
Adding to 12103100140 its reverse (4100130121), we get a palindrome (16203230261).
The spelling of 12103100140 in words is "twelve billion, one hundred three million, one hundred thousand, one hundred forty".
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