Base | Representation |
---|---|
bin | 10110100010111001… |
… | …00110001000001100 |
3 | 1011020112120020202020 |
4 | 23101130212020030 |
5 | 144242042301230 |
6 | 5321015530140 |
7 | 605642121432 |
oct | 132134461014 |
9 | 34215506666 |
10 | 12103868940 |
11 | 5151355979 |
12 | 2419689950 |
13 | 11ab831337 |
14 | 82b738d52 |
15 | 4ac93b810 |
hex | 2d172620c |
12103868940 has 24 divisors (see below), whose sum is σ = 33890833200. Its totient is φ = 3227698368.
The previous prime is 12103868929. The next prime is 12103868951. The reversal of 12103868940 is 4986830121.
It is an interprime number because it is at equal distance from previous prime (12103868929) and next prime (12103868951).
It is a junction number, because it is equal to n+sod(n) for n = 12103868892 and 12103868901.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100865515 + ... + 100865634.
It is an arithmetic number, because the mean of its divisors is an integer number (1412118050).
Almost surely, 212103868940 is an apocalyptic number.
12103868940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12103868940 is an abundant number, since it is smaller than the sum of its proper divisors (21786964260).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12103868940 is a wasteful number, since it uses less digits than its factorization.
12103868940 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 201731161 (or 201731159 counting only the distinct ones).
The product of its (nonzero) digits is 82944, while the sum is 42.
The spelling of 12103868940 in words is "twelve billion, one hundred three million, eight hundred sixty-eight thousand, nine hundred forty".
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