Base | Representation |
---|---|
bin | 101111111110011000… |
… | …001111111110101001 |
3 | 11220221222200120010222 |
4 | 233332120033332221 |
5 | 1320444134110100 |
6 | 35355305415425 |
7 | 3502345155266 |
oct | 577630177651 |
9 | 156858616128 |
10 | 51512410025 |
11 | 1a93445a09a |
12 | 9b9749a575 |
13 | 4b1c1b87bb |
14 | 26c954426d |
15 | 1517541485 |
hex | bfe60ffa9 |
51512410025 has 12 divisors (see below), whose sum is σ = 67237251600. Its totient is φ = 39040984080.
The previous prime is 51512410009. The next prime is 51512410067. The reversal of 51512410025 is 52001421515.
It is not a de Polignac number, because 51512410025 - 24 = 51512410009 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 51512409976 and 51512410003.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54223115 + ... + 54224064.
It is an arithmetic number, because the mean of its divisors is an integer number (5603104300).
Almost surely, 251512410025 is an apocalyptic number.
It is an amenable number.
51512410025 is a deficient number, since it is larger than the sum of its proper divisors (15724841575).
51512410025 is a wasteful number, since it uses less digits than its factorization.
51512410025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 108447208 (or 108447203 counting only the distinct ones).
The product of its (nonzero) digits is 2000, while the sum is 26.
The spelling of 51512410025 in words is "fifty-one billion, five hundred twelve million, four hundred ten thousand, twenty-five".
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