Base | Representation |
---|---|
bin | 101111111101111110… |
… | …0111110001000001111 |
3 | 100211220000221211221002 |
4 | 1133323330332020033 |
5 | 3141431343442033 |
6 | 115153413530515 |
7 | 10304500464125 |
oct | 1377374761017 |
9 | 324800854832 |
10 | 103011312143 |
11 | 3a761222523 |
12 | 17b6a343a3b |
13 | 9938654b4c |
14 | 4db2d6d915 |
15 | 2a2d7b53e8 |
hex | 17fbf3e20f |
103011312143 has 4 divisors (see below), whose sum is σ = 106334257728. Its totient is φ = 99688366560.
The previous prime is 103011312127. The next prime is 103011312161. The reversal of 103011312143 is 341213110301.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 103011312143 - 24 = 103011312127 is a prime.
It is a super-2 number, since 2×1030113121432 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (103011312113) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1661472746 + ... + 1661472807.
It is an arithmetic number, because the mean of its divisors is an integer number (26583564432).
Almost surely, 2103011312143 is an apocalyptic number.
103011312143 is a deficient number, since it is larger than the sum of its proper divisors (3322945585).
103011312143 is an equidigital number, since it uses as much as digits as its factorization.
103011312143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3322945584.
The product of its (nonzero) digits is 216, while the sum is 20.
Adding to 103011312143 its reverse (341213110301), we get a palindrome (444224422444).
The spelling of 103011312143 in words is "one hundred three billion, eleven million, three hundred twelve thousand, one hundred forty-three".
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