Base | Representation |
---|---|
bin | 1110011110000… |
… | …11100101101000 |
3 | 22110102010011110 |
4 | 13033003211220 |
5 | 222033343433 |
6 | 20013430320 |
7 | 3002530014 |
oct | 717034550 |
9 | 273363143 |
10 | 121387368 |
11 | 6257a143 |
12 | 3479b3a0 |
13 | 1c1c155b |
14 | 1219b544 |
15 | a9cb963 |
hex | 73c3968 |
121387368 has 32 divisors (see below), whose sum is σ = 303795360. Its totient is φ = 40418880.
The previous prime is 121387349. The next prime is 121387369. The reversal of 121387368 is 863783121.
It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.
It is not an unprimeable number, because it can be changed into a prime (121387369) 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, 26358 + ... + 30618.
It is an arithmetic number, because the mean of its divisors is an integer number (9493605).
Almost surely, 2121387368 is an apocalyptic number.
It is an amenable number.
121387368 is an abundant number, since it is smaller than the sum of its proper divisors (182407992).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121387368 is a wasteful number, since it uses less digits than its factorization.
121387368 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5457 (or 5453 counting only the distinct ones).
The product of its digits is 48384, while the sum is 39.
The square root of 121387368 is about 11017.5935666551. The cubic root of 121387368 is about 495.1359936517.
The spelling of 121387368 in words is "one hundred twenty-one million, three hundred eighty-seven thousand, three hundred sixty-eight".
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