Base | Representation |
---|---|
bin | 111110101111000… |
… | …0100000110100101 |
3 | 12102200222202120211 |
4 | 1331132010012211 |
5 | 13302342030000 |
6 | 544514055421 |
7 | 103110325546 |
oct | 17536040645 |
9 | 5380882524 |
10 | 2105033125 |
11 | 9902665a8 |
12 | 4a8b7a571 |
13 | 277160a40 |
14 | 15d7da4cd |
15 | c4c0d7ba |
hex | 7d7841a5 |
2105033125 has 30 divisors (see below), whose sum is σ = 2838367994. Its totient is φ = 1551432000.
The previous prime is 2105033113. The next prime is 2105033129. The reversal of 2105033125 is 5213305012.
It can be written as a sum of positive squares in 15 ways, for example, as 1974113761 + 130919364 = 44431^2 + 11442^2 .
It is not a de Polignac number, because 2105033125 - 29 = 2105032613 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 2105033096 and 2105033105.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2105033129) by changing a digit.
It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 4135371 + ... + 4135879.
Almost surely, 22105033125 is an apocalyptic number.
2105033125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
2105033125 is a deficient number, since it is larger than the sum of its proper divisors (733334869).
2105033125 is an frugal number, since it uses more digits than its factorization.
2105033125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1051 (or 527 counting only the distinct ones).
The product of its (nonzero) digits is 900, while the sum is 22.
The square root of 2105033125 is about 45880.6399802793. The cubic root of 2105033125 is about 1281.6014146124.
Adding to 2105033125 its reverse (5213305012), we get a palindrome (7318338137).
The spelling of 2105033125 in words is "two billion, one hundred five million, thirty-three thousand, one hundred twenty-five".
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