Base | Representation |
---|---|
bin | 10110100101000000… |
… | …10010010000000011 |
3 | 1011021202221202110022 |
4 | 23102200102100003 |
5 | 144311113111230 |
6 | 5322452124055 |
7 | 606246004340 |
oct | 132240222003 |
9 | 34252852408 |
10 | 12121613315 |
11 | 5160375549 |
12 | 242360662b |
13 | 11b2404b76 |
14 | 82dc377c7 |
15 | 4ae2941e5 |
hex | 2d2812403 |
12121613315 has 8 divisors (see below), whose sum is σ = 16623926880. Its totient is φ = 8311963392.
The previous prime is 12121613299. The next prime is 12121613321. The reversal of 12121613315 is 51331612121.
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 12121613315 - 24 = 12121613299 is a prime.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173165870 + ... + 173165939.
It is an arithmetic number, because the mean of its divisors is an integer number (2077990860).
Almost surely, 212121613315 is an apocalyptic number.
12121613315 is a deficient number, since it is larger than the sum of its proper divisors (4502313565).
12121613315 is an equidigital number, since it uses as much as digits as its factorization.
12121613315 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 346331821.
The product of its digits is 1080, while the sum is 26.
The spelling of 12121613315 in words is "twelve billion, one hundred twenty-one million, six hundred thirteen thousand, three hundred fifteen".
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