Base | Representation |
---|---|
bin | 1110100001100… |
… | …10100100011010 |
3 | 22111021012201200 |
4 | 13100302210122 |
5 | 222142420241 |
6 | 20031255030 |
7 | 3006432222 |
oct | 720624432 |
9 | 274235650 |
10 | 121841946 |
11 | 6285a726 |
12 | 3497a476 |
13 | 1c320435 |
14 | 12279082 |
15 | aa6b4b6 |
hex | 743291a |
121841946 has 24 divisors (see below), whose sum is σ = 277885920. Its totient is φ = 38476296.
The previous prime is 121841897. The next prime is 121841947. The reversal of 121841946 is 649148121.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 121841946.
It is not an unprimeable number, because it can be changed into a prime (121841947) 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, 177790 + ... + 178473.
It is an arithmetic number, because the mean of its divisors is an integer number (11578580).
Almost surely, 2121841946 is an apocalyptic number.
121841946 is an abundant number, since it is smaller than the sum of its proper divisors (156043974).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121841946 is a wasteful number, since it uses less digits than its factorization.
121841946 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 356290 (or 356287 counting only the distinct ones).
The product of its digits is 13824, while the sum is 36.
The square root of 121841946 is about 11038.2039299879. The cubic root of 121841946 is about 495.7532944333.
The spelling of 121841946 in words is "one hundred twenty-one million, eight hundred forty-one thousand, nine hundred forty-six".
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