Base | Representation |
---|---|
bin | 10010101000111000… |
… | …011111110110101111 |
3 | 1220122202110112121010 |
4 | 102220320133312233 |
5 | 311441343031030 |
6 | 13105521240303 |
7 | 1305642556341 |
oct | 225070376657 |
9 | 56582415533 |
10 | 20013252015 |
11 | 853aa604a9 |
12 | 3a66493093 |
13 | 1b6c367773 |
14 | d7bd75291 |
15 | 7c1ed76b0 |
hex | 4a8e1fdaf |
20013252015 has 16 divisors (see below), whose sum is σ = 32134359168. Its totient is φ = 10636015776.
The previous prime is 20013251971. The next prime is 20013252041. The reversal of 20013252015 is 51025231002.
It is not a de Polignac number, because 20013252015 - 210 = 20013250991 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 20013251982 and 20013252000.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2353029 + ... + 2361518.
It is an arithmetic number, because the mean of its divisors is an integer number (2008397448).
Almost surely, 220013252015 is an apocalyptic number.
20013252015 is a deficient number, since it is larger than the sum of its proper divisors (12121107153).
20013252015 is a wasteful number, since it uses less digits than its factorization.
20013252015 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4714838.
The product of its (nonzero) digits is 600, while the sum is 21.
Adding to 20013252015 its reverse (51025231002), we get a palindrome (71038483017).
The spelling of 20013252015 in words is "twenty billion, thirteen million, two hundred fifty-two thousand, fifteen".
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