Base | Representation |
---|---|
bin | 1110011110000… |
… | …01111110011000 |
3 | 22110101210002201 |
4 | 13033001332120 |
5 | 222033141020 |
6 | 20013335544 |
7 | 3002501524 |
oct | 717017630 |
9 | 273353081 |
10 | 121380760 |
11 | 62575186 |
12 | 347975b4 |
13 | 1c1bb547 |
14 | 12198d84 |
15 | a9c9a0a |
hex | 73c1f98 |
121380760 has 32 divisors (see below), whose sum is σ = 274104000. Its totient is φ = 48375040.
The previous prime is 121380737. The next prime is 121380769. The reversal of 121380760 is 67083121.
It is a zygodrome in base 2.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121380769) 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, 5841 + ... + 16639.
It is an arithmetic number, because the mean of its divisors is an integer number (8565750).
Almost surely, 2121380760 is an apocalyptic number.
121380760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
121380760 is an abundant number, since it is smaller than the sum of its proper divisors (152723240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121380760 is a wasteful number, since it uses less digits than its factorization.
121380760 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11091 (or 11087 counting only the distinct ones).
The product of its (nonzero) digits is 2016, while the sum is 28.
The square root of 121380760 is about 11017.2936785764. The cubic root of 121380760 is about 495.1270088672.
The spelling of 121380760 in words is "one hundred twenty-one million, three hundred eighty thousand, seven hundred sixty".
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