Base | Representation |
---|---|
bin | 111101001000100… |
… | …1000110110000001 |
3 | 12021221220111110111 |
4 | 1322101020312001 |
5 | 13200114004100 |
6 | 535314431321 |
7 | 101555605306 |
oct | 17221106601 |
9 | 5257814414 |
10 | 2051313025 |
11 | 962a04923 |
12 | 492b92541 |
13 | 268ca22b8 |
14 | 1566150ad |
15 | c014b6ba |
hex | 7a448d81 |
2051313025 has 12 divisors (see below), whose sum is σ = 2605669164. Its totient is φ = 1601024000.
The previous prime is 2051313013. The next prime is 2051313049. The reversal of 2051313025 is 5203131502.
It can be written as a sum of positive squares in 6 ways, for example, as 1006665984 + 1044647041 = 31728^2 + 32321^2 .
It is not a de Polignac number, because 2051313025 - 25 = 2051312993 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 2051312987 and 2051313005.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 999616 + ... + 1001665.
It is an arithmetic number, because the mean of its divisors is an integer number (217139097).
Almost surely, 22051313025 is an apocalyptic number.
2051313025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
2051313025 is a deficient number, since it is larger than the sum of its proper divisors (554356139).
2051313025 is a wasteful number, since it uses less digits than its factorization.
2051313025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2001332 (or 2001327 counting only the distinct ones).
The product of its (nonzero) digits is 900, while the sum is 22.
The square root of 2051313025 is about 45291.4233050806. The cubic root of 2051313025 is about 1270.6052512172.
Adding to 2051313025 its reverse (5203131502), we get a palindrome (7254444527).
The spelling of 2051313025 in words is "two billion, fifty-one million, three hundred thirteen thousand, twenty-five".
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