Base | Representation |
---|---|
bin | 1010011000000… |
… | …01101100010101 |
3 | 20001210000201002 |
4 | 11030001230111 |
5 | 134240214431 |
6 | 12345313045 |
7 | 2104550156 |
oct | 514015425 |
9 | 201700632 |
10 | 87038741 |
11 | 45149549 |
12 | 25195785 |
13 | 1505611a |
14 | b7b992d |
15 | 79943cb |
hex | 5301b15 |
87038741 has 2 divisors, whose sum is σ = 87038742. Its totient is φ = 87038740.
The previous prime is 87038729. The next prime is 87038771. The reversal of 87038741 is 14783078.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 83631025 + 3407716 = 9145^2 + 1846^2 .
It is a cyclic number.
It is not a de Polignac number, because 87038741 - 218 = 86776597 is a prime.
It is an alternating number because its digits alternate between even and odd.
It is a junction number, because it is equal to n+sod(n) for n = 87038695 and 87038704.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (87038711) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43519370 + 43519371.
It is an arithmetic number, because the mean of its divisors is an integer number (43519371).
Almost surely, 287038741 is an apocalyptic number.
It is an amenable number.
87038741 is a deficient number, since it is larger than the sum of its proper divisors (1).
87038741 is an equidigital number, since it uses as much as digits as its factorization.
87038741 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 37632, while the sum is 38.
The square root of 87038741 is about 9329.4555575339. The cubic root of 87038741 is about 443.1705237562.
The spelling of 87038741 in words is "eighty-seven million, thirty-eight thousand, seven hundred forty-one".
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