Base | Representation |
---|---|
bin | 1110100001110… |
… | …00111111001000 |
3 | 22111022112210020 |
4 | 13100320333020 |
5 | 222144240412 |
6 | 20032020440 |
7 | 3006601653 |
oct | 720707710 |
9 | 274275706 |
10 | 121868232 |
11 | 62878452 |
12 | 34991720 |
13 | 1c32c3a5 |
14 | 1228489a |
15 | aa7418c |
hex | 7438fc8 |
121868232 has 32 divisors (see below), whose sum is σ = 312907200. Its totient is φ = 39524544.
The previous prime is 121868231. The next prime is 121868239. The reversal of 121868232 is 232868121.
It is a nude number because it is divisible by every one of its digits.
It is a junction number, because it is equal to n+sod(n) for n = 121868193 and 121868202.
It is not an unprimeable number, because it can be changed into a prime (121868231) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67732 + ... + 69507.
It is an arithmetic number, because the mean of its divisors is an integer number (9778350).
Almost surely, 2121868232 is an apocalyptic number.
121868232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
121868232 is an abundant number, since it is smaller than the sum of its proper divisors (191038968).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121868232 is a wasteful number, since it uses less digits than its factorization.
121868232 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 137285 (or 137281 counting only the distinct ones).
The product of its digits is 9216, while the sum is 33.
The square root of 121868232 is about 11039.3945486154. The cubic root of 121868232 is about 495.7889428957.
The spelling of 121868232 in words is "one hundred twenty-one million, eight hundred sixty-eight thousand, two hundred thirty-two".
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