Base | Representation |
---|---|
bin | 1100100001110… |
… | …11111010011001 |
3 | 21022202210012202 |
4 | 12100323322121 |
5 | 203401244001 |
6 | 14232415545 |
7 | 2414234513 |
oct | 620737231 |
9 | 238683182 |
10 | 105103001 |
11 | 54367493 |
12 | 2b2475b5 |
13 | 18a0c433 |
14 | dd5cbb3 |
15 | 936196b |
hex | 643be99 |
105103001 has 4 divisors (see below), whose sum is σ = 105153972. Its totient is φ = 105052032.
The previous prime is 105102979. The next prime is 105103007. The reversal of 105103001 is 100301501.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100301501 = 6733 ⋅14897.
It can be written as a sum of positive squares in 2 ways, for example, as 21855625 + 83247376 = 4675^2 + 9124^2 .
It is a cyclic number.
It is not a de Polignac number, because 105103001 - 214 = 105086617 is a prime.
It is a super-2 number, since 2×1051030012 = 22093281638412002, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (105103007) 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, 22256 + ... + 26561.
It is an arithmetic number, because the mean of its divisors is an integer number (26288493).
Almost surely, 2105103001 is an apocalyptic number.
It is an amenable number.
105103001 is a deficient number, since it is larger than the sum of its proper divisors (50971).
105103001 is an equidigital number, since it uses as much as digits as its factorization.
105103001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 50970.
The product of its (nonzero) digits is 15, while the sum is 11.
The square root of 105103001 is about 10251.9754681720. The cubic root of 105103001 is about 471.9236102196.
Adding to 105103001 its reverse (100301501), we get a palindrome (205404502).
The spelling of 105103001 in words is "one hundred five million, one hundred three thousand, one".
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