Base | Representation |
---|---|
bin | 1110011111000… |
… | …10100001111001 |
3 | 22110122120000102 |
4 | 13033202201321 |
5 | 222101422410 |
6 | 20020245145 |
7 | 3003565346 |
oct | 717424171 |
9 | 273576012 |
10 | 121514105 |
11 | 62656389 |
12 | 348407b5 |
13 | 1c23714b |
14 | 121d17cd |
15 | aa042a5 |
hex | 73e2879 |
121514105 has 8 divisors (see below), whose sum is σ = 149758152. Its totient is φ = 94583808.
The previous prime is 121514093. The next prime is 121514117. The reversal of 121514105 is 501415121.
It is an interprime number because it is at equal distance from previous prime (121514093) and next prime (121514117).
It can be written as a sum of positive squares in 4 ways, for example, as 70291456 + 51222649 = 8384^2 + 7157^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 121514105 - 28 = 121513849 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328232 + ... + 328601.
It is an arithmetic number, because the mean of its divisors is an integer number (18719769).
Almost surely, 2121514105 is an apocalyptic number.
It is an amenable number.
121514105 is a deficient number, since it is larger than the sum of its proper divisors (28244047).
121514105 is an equidigital number, since it uses as much as digits as its factorization.
121514105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 656875.
The product of its (nonzero) digits is 200, while the sum is 20.
The square root of 121514105 is about 11023.3436397492. The cubic root of 121514105 is about 495.3082527176.
Adding to 121514105 its reverse (501415121), we get a palindrome (622929226).
The spelling of 121514105 in words is "one hundred twenty-one million, five hundred fourteen thousand, one hundred five".
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