Base | Representation |
---|---|
bin | 1100100001010… |
… | …00111101101101 |
3 | 21022121211202020 |
4 | 12100220331231 |
5 | 203341303024 |
6 | 14231020353 |
7 | 2413462320 |
oct | 620507555 |
9 | 238554666 |
10 | 105025389 |
11 | 54314147 |
12 | 2b20a6b9 |
13 | 189b3001 |
14 | dd3c7b7 |
15 | 9348979 |
hex | 6428f6d |
105025389 has 16 divisors (see below), whose sum is σ = 160874112. Its totient is φ = 59701248.
The previous prime is 105025387. The next prime is 105025397. The reversal of 105025389 is 983520501.
It is not a de Polignac number, because 105025389 - 21 = 105025387 is a prime.
It is a super-2 number, since 2×1050253892 = 22060664669202642, which contains 22 as substring.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (105025387) 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, 8904 + ... + 17009.
It is an arithmetic number, because the mean of its divisors is an integer number (10054632).
Almost surely, 2105025389 is an apocalyptic number.
It is an amenable number.
105025389 is a deficient number, since it is larger than the sum of its proper divisors (55848723).
105025389 is a wasteful number, since it uses less digits than its factorization.
105025389 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26116.
The product of its (nonzero) digits is 10800, while the sum is 33.
The square root of 105025389 is about 10248.1895474274. The cubic root of 105025389 is about 471.8074195808.
The spelling of 105025389 in words is "one hundred five million, twenty-five thousand, three hundred eighty-nine".
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