Base | Representation |
---|---|
bin | 11101101100000101110… |
… | …00100011100101000111 |
3 | 10121112001201222101012221 |
4 | 32312002320203211013 |
5 | 113203132344104111 |
6 | 2100343501553211 |
7 | 133462051252012 |
oct | 16660270434507 |
9 | 3545051871187 |
10 | 1020103113031 |
11 | 3636946822a2 |
12 | 145852575807 |
13 | 75270136bb2 |
14 | 375322d0379 |
15 | 1b80659e371 |
hex | ed82e23947 |
1020103113031 has 8 divisors (see below), whose sum is σ = 1034149950864. Its totient is φ = 1006058243520.
The previous prime is 1020103112929. The next prime is 1020103113101. The reversal of 1020103113031 is 1303113010201.
1020103113031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1020103113031 is a prime.
It is a super-2 number, since 2×10201031130312 (a number of 25 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1020103112996 and 1020103113014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1020103113131) 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, 567165 + ... + 1536841.
It is an arithmetic number, because the mean of its divisors is an integer number (129268743858).
Almost surely, 21020103113031 is an apocalyptic number.
1020103113031 is a deficient number, since it is larger than the sum of its proper divisors (14046837833).
1020103113031 is an equidigital number, since it uses as much as digits as its factorization.
1020103113031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 984161.
The product of its (nonzero) digits is 54, while the sum is 16.
Adding to 1020103113031 its reverse (1303113010201), we get a palindrome (2323216123232).
The spelling of 1020103113031 in words is "one trillion, twenty billion, one hundred three million, one hundred thirteen thousand, thirty-one".
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