Base | Representation |
---|---|
bin | 11101110101111011110… |
… | …01110101001011001111 |
3 | 10122000201001221011222222 |
4 | 32322331321311023033 |
5 | 113244443344122122 |
6 | 2103020141125555 |
7 | 134040035326523 |
oct | 16727571651317 |
9 | 3560631834888 |
10 | 1025388270287 |
11 | 365956a46157 |
12 | 1468885598bb |
13 | 75903097694 |
14 | 378b41bdd83 |
15 | 1ba15581b42 |
hex | eebde752cf |
1025388270287 has 16 divisors (see below), whose sum is σ = 1084360193280. Its totient is φ = 968038291200.
The previous prime is 1025388270259. The next prime is 1025388270301. The reversal of 1025388270287 is 7820728835201.
It is a cyclic number.
It is not a de Polignac number, because 1025388270287 - 212 = 1025388266191 is a prime.
It is a super-2 number, since 2×10253882702872 (a number of 25 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1025388270217) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28234913 + ... + 28271205.
It is an arithmetic number, because the mean of its divisors is an integer number (67772512080).
Almost surely, 21025388270287 is an apocalyptic number.
1025388270287 is a deficient number, since it is larger than the sum of its proper divisors (58971922993).
1025388270287 is a wasteful number, since it uses less digits than its factorization.
1025388270287 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 58594.
The product of its (nonzero) digits is 3010560, while the sum is 53.
The spelling of 1025388270287 in words is "one trillion, twenty-five billion, three hundred eighty-eight million, two hundred seventy thousand, two hundred eighty-seven".
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