Base | Representation |
---|---|
bin | 10010101000100101… |
… | …011011001011010011 |
3 | 1220122102001112000122 |
4 | 102220211123023103 |
5 | 311434103031430 |
6 | 13105222140455 |
7 | 1305552223355 |
oct | 225045331323 |
9 | 56572045018 |
10 | 20008252115 |
11 | 8538155a55 |
12 | 3a6488172b |
13 | 1b6b306a47 |
14 | d7b4330d5 |
15 | 7c184aee5 |
hex | 4a895b2d3 |
20008252115 has 8 divisors (see below), whose sum is σ = 25053811488. Its totient is φ = 15310662400.
The previous prime is 20008252091. The next prime is 20008252129. The reversal of 20008252115 is 51125280002.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20008252115 - 28 = 20008251859 is a prime.
It is a Duffinian number.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 86992286 + ... + 86992515.
It is an arithmetic number, because the mean of its divisors is an integer number (3131726436).
Almost surely, 220008252115 is an apocalyptic number.
20008252115 is a deficient number, since it is larger than the sum of its proper divisors (5045559373).
20008252115 is a wasteful number, since it uses less digits than its factorization.
20008252115 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 173984829.
The product of its (nonzero) digits is 1600, while the sum is 26.
The spelling of 20008252115 in words is "twenty billion, eight million, two hundred fifty-two thousand, one hundred fifteen".
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