Base | Representation |
---|---|
bin | 10110100010111001… |
… | …00110001000000000 |
3 | 1011020112120020201210 |
4 | 23101130212020000 |
5 | 144242042301203 |
6 | 5321015530120 |
7 | 605642121414 |
oct | 132134461000 |
9 | 34215506653 |
10 | 12103868928 |
11 | 5151355968 |
12 | 2419689940 |
13 | 11ab831328 |
14 | 82b738d44 |
15 | 4ac93b803 |
hex | 2d1726200 |
12103868928 has 40 divisors (see below), whose sum is σ = 32245467408. Its totient is φ = 4034622464.
The previous prime is 12103868893. The next prime is 12103868929. The reversal of 12103868928 is 82986830121.
It is a Harshad number since it is a multiple of its sum of digits (48).
It is not an unprimeable number, because it can be changed into a prime (12103868929) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3938526 + ... + 3941597.
Almost surely, 212103868928 is an apocalyptic number.
It is an amenable number.
12103868928 is an abundant number, since it is smaller than the sum of its proper divisors (20141598480).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12103868928 is an frugal number, since it uses more digits than its factorization.
12103868928 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7880144 (or 7880128 counting only the distinct ones).
The product of its (nonzero) digits is 331776, while the sum is 48.
The spelling of 12103868928 in words is "twelve billion, one hundred three million, eight hundred sixty-eight thousand, nine hundred twenty-eight".
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