Base | Representation |
---|---|
bin | 101111111110100100… |
… | …1000000110011000101 |
3 | 100211221102110121001212 |
4 | 1133331021000303011 |
5 | 3142001444333041 |
6 | 115155405101205 |
7 | 10305132066314 |
oct | 1377511006305 |
9 | 324842417055 |
10 | 103031246021 |
11 | 3a7714a8100 |
12 | 17b74b57805 |
13 | 993c814142 |
14 | 4db587c27b |
15 | 2a304018eb |
hex | 17fd240cc5 |
103031246021 has 12 divisors (see below), whose sum is σ = 119209708800. Its totient is φ = 88735042440.
The previous prime is 103031246009. The next prime is 103031246069. The reversal of 103031246021 is 120642130301.
It is not a de Polignac number, because 103031246021 - 26 = 103031245957 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (103031276021) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22405541 + ... + 22410138.
It is an arithmetic number, because the mean of its divisors is an integer number (9934142400).
Almost surely, 2103031246021 is an apocalyptic number.
103031246021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
103031246021 is a deficient number, since it is larger than the sum of its proper divisors (16178462779).
103031246021 is a wasteful number, since it uses less digits than its factorization.
103031246021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 44815720 (or 44815709 counting only the distinct ones).
The product of its (nonzero) digits is 864, while the sum is 23.
Adding to 103031246021 its reverse (120642130301), we get a palindrome (223673376322).
The spelling of 103031246021 in words is "one hundred three billion, thirty-one million, two hundred forty-six thousand, twenty-one".
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