Base | Representation |
---|---|
bin | 11000011100011010… |
… | …01100010010110110 |
3 | 1020212120200201112020 |
4 | 30032031030102312 |
5 | 203334022204032 |
6 | 10010112334010 |
7 | 643130465154 |
oct | 141615142266 |
9 | 36776621466 |
10 | 13123241142 |
11 | 5624800340 |
12 | 2662b44306 |
13 | 1311a91c5b |
14 | 8c6c8a3d4 |
15 | 51c197b2c |
hex | 30e34c4b6 |
13123241142 has 32 divisors (see below), whose sum is σ = 28636723584. Its totient is φ = 3976156800.
The previous prime is 13123241057. The next prime is 13123241143. The reversal of 13123241142 is 24114232131.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13123241143) 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, 709678 + ... + 727934.
It is an arithmetic number, because the mean of its divisors is an integer number (894897612).
Almost surely, 213123241142 is an apocalyptic number.
13123241142 is an abundant number, since it is smaller than the sum of its proper divisors (15513482442).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13123241142 is a wasteful number, since it uses less digits than its factorization.
13123241142 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 29164.
The product of its digits is 1152, while the sum is 24.
Adding to 13123241142 its reverse (24114232131), we get a palindrome (37237473273).
The spelling of 13123241142 in words is "thirteen billion, one hundred twenty-three million, two hundred forty-one thousand, one hundred forty-two".
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