Base | Representation |
---|---|
bin | 10110100010110011… |
… | …10010010000101000 |
3 | 1011020111011211010120 |
4 | 23101121302100220 |
5 | 144241400212300 |
6 | 5320552043240 |
7 | 605632632465 |
oct | 132131622050 |
9 | 34214154116 |
10 | 12103132200 |
11 | 51509a23a5 |
12 | 2419393520 |
13 | 11ab633bb3 |
14 | 82b5c666c |
15 | 4ac8433a0 |
hex | 2d1672428 |
12103132200 has 48 divisors (see below), whose sum is σ = 37519711680. Its totient is φ = 3227501760.
The previous prime is 12103132007. The next prime is 12103132207. The reversal of 12103132200 is 223130121.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 12103132200.
It is not an unprimeable number, because it can be changed into a prime (12103132207) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10085344 + ... + 10086543.
It is an arithmetic number, because the mean of its divisors is an integer number (781660660).
Almost surely, 212103132200 is an apocalyptic number.
12103132200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12103132200 is an abundant number, since it is smaller than the sum of its proper divisors (25416579480).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12103132200 is a wasteful number, since it uses less digits than its factorization.
12103132200 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20171906 (or 20171897 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 15.
Adding to 12103132200 its reverse (223130121), we get a palindrome (12326262321).
The spelling of 12103132200 in words is "twelve billion, one hundred three million, one hundred thirty-two thousand, two hundred".
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