Base | Representation |
---|---|
bin | 1010011000110… |
… | …10101011010111 |
3 | 20001222020002101 |
4 | 11030122223113 |
5 | 134302003304 |
6 | 12351422531 |
7 | 2105454424 |
oct | 514325327 |
9 | 201866071 |
10 | 87141079 |
11 | 45209423 |
12 | 25224a47 |
13 | 1509088c |
14 | b804d4b |
15 | 79b48a4 |
hex | 531aad7 |
87141079 has 2 divisors, whose sum is σ = 87141080. Its totient is φ = 87141078.
The previous prime is 87141013. The next prime is 87141097. The reversal of 87141079 is 97014178.
Together with next prime (87141097) it forms an Ormiston pair, because they use the same digits, order apart.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 87141079 - 29 = 87140567 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (87141679) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43570539 + 43570540.
It is an arithmetic number, because the mean of its divisors is an integer number (43570540).
Almost surely, 287141079 is an apocalyptic number.
87141079 is a deficient number, since it is larger than the sum of its proper divisors (1).
87141079 is an equidigital number, since it uses as much as digits as its factorization.
87141079 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 14112, while the sum is 37.
The square root of 87141079 is about 9334.9386179021. The cubic root of 87141079 is about 443.3441453761.
The spelling of 87141079 in words is "eighty-seven million, one hundred forty-one thousand, seventy-nine".
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