Base | Representation |
---|---|
bin | 101111111110111001… |
… | …1001110100000011101 |
3 | 100211222012021211001010 |
4 | 1133331303032200131 |
5 | 3142012312442341 |
6 | 115200442205433 |
7 | 10305325126302 |
oct | 1377563164035 |
9 | 324865254033 |
10 | 103042312221 |
11 | 3a777776322 |
12 | 17b787b3879 |
13 | 9941bba0a4 |
14 | 4db711d0a9 |
15 | 2a3138a716 |
hex | 17fdcce81d |
103042312221 has 16 divisors (see below), whose sum is σ = 138950683200. Its totient is φ = 67914599808.
The previous prime is 103042312171. The next prime is 103042312223. The reversal of 103042312221 is 122213240301.
It is not a de Polignac number, because 103042312221 - 217 = 103042181149 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (103042312223) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2722495 + ... + 2760083.
It is an arithmetic number, because the mean of its divisors is an integer number (8684417700).
Almost surely, 2103042312221 is an apocalyptic number.
It is an amenable number.
103042312221 is a deficient number, since it is larger than the sum of its proper divisors (35908370979).
103042312221 is a wasteful number, since it uses less digits than its factorization.
103042312221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 47948.
The product of its (nonzero) digits is 576, while the sum is 21.
Adding to 103042312221 its reverse (122213240301), we get a palindrome (225255552522).
The spelling of 103042312221 in words is "one hundred three billion, forty-two million, three hundred twelve thousand, two hundred twenty-one".
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