Base | Representation |
---|---|
bin | 1110011110110… |
… | …11100111100001 |
3 | 22110121010011211 |
4 | 13033123213201 |
5 | 222100021133 |
6 | 20015510121 |
7 | 3003416662 |
oct | 717334741 |
9 | 273533154 |
10 | 121485793 |
11 | 62637090 |
12 | 34828341 |
13 | 1c2272b0 |
14 | 121c5369 |
15 | a9eabcd |
hex | 73db9e1 |
121485793 has 32 divisors (see below), whose sum is σ = 152570880. Its totient is φ = 95135040.
The previous prime is 121485773. The next prime is 121485803. The reversal of 121485793 is 397584121.
It is not a de Polignac number, because 121485793 - 25 = 121485761 is a prime.
It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is not an unprimeable number, because it can be changed into a prime (121485703) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 140998 + ... + 141856.
It is an arithmetic number, because the mean of its divisors is an integer number (4767840).
Almost surely, 2121485793 is an apocalyptic number.
121485793 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
It is an amenable number.
121485793 is a deficient number, since it is larger than the sum of its proper divisors (31085087).
121485793 is a wasteful number, since it uses less digits than its factorization.
121485793 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 949.
The product of its digits is 60480, while the sum is 40.
The square root of 121485793 is about 11022.0593810776. The cubic root of 121485793 is about 495.2697818573.
The spelling of 121485793 in words is "one hundred twenty-one million, four hundred eighty-five thousand, seven hundred ninety-three".
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