Base | Representation |
---|---|
bin | 11000010001010011… |
… | …11110011011011111 |
3 | 1020122002110211202201 |
4 | 30020221332123133 |
5 | 203141202420411 |
6 | 5552544432331 |
7 | 640620135316 |
oct | 141051763337 |
9 | 36562424681 |
10 | 13030123231 |
11 | 558718a494 |
12 | 26379186a7 |
13 | 12c86baab8 |
14 | 8b876b27d |
15 | 513e023c1 |
hex | 308a7e6df |
13030123231 has 16 divisors (see below), whose sum is σ = 13781016000. Its totient is φ = 12295241728.
The previous prime is 13030123219. The next prime is 13030123237. The reversal of 13030123231 is 13232103031.
It is a cyclic number.
It is not a de Polignac number, because 13030123231 - 219 = 13029598943 is a prime.
It is a super-2 number, since 2×130301232312 (a number of 21 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 = 13030123199 and 13030123208.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13030123237) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 912015 + ... + 926191.
It is an arithmetic number, because the mean of its divisors is an integer number (861313500).
Almost surely, 213030123231 is an apocalyptic number.
13030123231 is a deficient number, since it is larger than the sum of its proper divisors (750892769).
13030123231 is a wasteful number, since it uses less digits than its factorization.
13030123231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14738.
The product of its (nonzero) digits is 324, while the sum is 19.
Adding to 13030123231 its reverse (13232103031), we get a palindrome (26262226262).
The spelling of 13030123231 in words is "thirteen billion, thirty million, one hundred twenty-three thousand, two hundred thirty-one".
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