Base | Representation |
---|---|
bin | 1110100001000… |
… | …00110110010000 |
3 | 22111010112011022 |
4 | 13100200312100 |
5 | 222133104420 |
6 | 20025535012 |
7 | 3006010466 |
oct | 720406620 |
9 | 274115138 |
10 | 121769360 |
11 | 62810139 |
12 | 34944468 |
13 | 1c2c639b |
14 | 1225a836 |
15 | aa54c25 |
hex | 7420d90 |
121769360 has 40 divisors (see below), whose sum is σ = 295427520. Its totient is φ = 46589312.
The previous prime is 121769353. The next prime is 121769363. The reversal of 121769360 is 63967121.
It is a tau number, because it is divible by the number of its divisors (40).
It is a self number, because there is not a number n which added to its sum of digits gives 121769360.
It is not an unprimeable number, because it can be changed into a prime (121769363) 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, 31250 + ... + 34929.
It is an arithmetic number, because the mean of its divisors is an integer number (7385688).
Almost surely, 2121769360 is an apocalyptic number.
121769360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
121769360 is an abundant number, since it is smaller than the sum of its proper divisors (173658160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121769360 is a wasteful number, since it uses less digits than its factorization.
121769360 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 66215 (or 66209 counting only the distinct ones).
The product of its (nonzero) digits is 13608, while the sum is 35.
The square root of 121769360 is about 11034.9154958251. The cubic root of 121769360 is about 495.6548283521.
The spelling of 121769360 in words is "one hundred twenty-one million, seven hundred sixty-nine thousand, three hundred sixty".
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