Base | Representation |
---|---|
bin | 11000110010110010… |
… | …11011110111010101 |
3 | 1021100122222212021210 |
4 | 30121121123313111 |
5 | 204230104000041 |
6 | 10040500532033 |
7 | 650600430144 |
oct | 143131336725 |
9 | 37318885253 |
10 | 13311000021 |
11 | 5710792370 |
12 | 26b59b1019 |
13 | 1341951597 |
14 | 903ba375b |
15 | 52d8d5016 |
hex | 31965bdd5 |
13311000021 has 8 divisors (see below), whose sum is σ = 19361454624. Its totient is φ = 8067272720.
The previous prime is 13311000019. The next prime is 13311000041. The reversal of 13311000021 is 12000011331.
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 13311000021 - 21 = 13311000019 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 13310999970 and 13311000006.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13311000041) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201681786 + ... + 201681851.
It is an arithmetic number, because the mean of its divisors is an integer number (2420181828).
Almost surely, 213311000021 is an apocalyptic number.
13311000021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
13311000021 is a deficient number, since it is larger than the sum of its proper divisors (6050454603).
13311000021 is a wasteful number, since it uses less digits than its factorization.
13311000021 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 403363651.
The product of its (nonzero) digits is 18, while the sum is 12.
Adding to 13311000021 its reverse (12000011331), we get a palindrome (25311011352).
The spelling of 13311000021 in words is "thirteen billion, three hundred eleven million, twenty-one", and thus it is an aban number.
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