Base | Representation |
---|---|
bin | 10010101111111010… |
… | …011110001100011010 |
3 | 1220221222102102112202 |
4 | 102233322132030122 |
5 | 312212042210020 |
6 | 13125333410202 |
7 | 1311604314242 |
oct | 225772361432 |
9 | 56858372482 |
10 | 20131210010 |
11 | 85a05a804a |
12 | 3a99a99962 |
13 | 1b8a9280b2 |
14 | d8d8bcb22 |
15 | 7cc537e75 |
hex | 4afe9e31a |
20131210010 has 8 divisors (see below), whose sum is σ = 36236178036. Its totient is φ = 8052484000.
The previous prime is 20131209979. The next prime is 20131210027. The reversal of 20131210010 is 1001213102.
It can be written as a sum of positive squares in 2 ways, for example, as 18825760849 + 1305449161 = 137207^2 + 36131^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a junction number, because it is equal to n+sod(n) for n = 20131209973 and 20131210000.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1006560491 + ... + 1006560510.
Almost surely, 220131210010 is an apocalyptic number.
20131210010 is a deficient number, since it is larger than the sum of its proper divisors (16104968026).
20131210010 is a wasteful number, since it uses less digits than its factorization.
20131210010 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2013121008.
The product of its (nonzero) digits is 12, while the sum is 11.
Adding to 20131210010 its reverse (1001213102), we get a palindrome (21132423112).
The spelling of 20131210010 in words is "twenty billion, one hundred thirty-one million, two hundred ten thousand, ten".
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