Base | Representation |
---|---|
bin | 10010101111011000… |
… | …100001010111010111 |
3 | 1220221100200021011120 |
4 | 102233120201113113 |
5 | 312202302410403 |
6 | 13124414535023 |
7 | 1311435546060 |
oct | 225730412727 |
9 | 56840607146 |
10 | 20122310103 |
11 | 8596579455 |
12 | 3a96b07473 |
13 | 1b88b3018c |
14 | d8c643567 |
15 | 7cb87ae53 |
hex | 4af6215d7 |
20122310103 has 32 divisors (see below), whose sum is σ = 31585142784. Its totient is φ = 11154350592.
The previous prime is 20122310017. The next prime is 20122310113. The reversal of 20122310103 is 30101322102.
It is not a de Polignac number, because 20122310103 - 28 = 20122309847 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20122310113) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223426 + ... + 300272.
It is an arithmetic number, because the mean of its divisors is an integer number (987035712).
Almost surely, 220122310103 is an apocalyptic number.
20122310103 is a deficient number, since it is larger than the sum of its proper divisors (11462832681).
20122310103 is a wasteful number, since it uses less digits than its factorization.
20122310103 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 77231.
The product of its (nonzero) digits is 72, while the sum is 15.
Adding to 20122310103 its reverse (30101322102), we get a palindrome (50223632205).
The spelling of 20122310103 in words is "twenty billion, one hundred twenty-two million, three hundred ten thousand, one hundred three".
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