Base | Representation |
---|---|
bin | 1010011010101… |
… | …10101110111110 |
3 | 20002102201112011 |
4 | 11031112232332 |
5 | 134332341240 |
6 | 12401001434 |
7 | 2110530541 |
oct | 515265676 |
9 | 202381464 |
10 | 87387070 |
11 | 45367221 |
12 | 2532327a |
13 | 15148834 |
14 | b86a858 |
15 | 7a126ea |
hex | 5356bbe |
87387070 has 8 divisors (see below), whose sum is σ = 157296744. Its totient is φ = 34954824.
The previous prime is 87387067. The next prime is 87387077. The reversal of 87387070 is 7078378.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87387077) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4369344 + ... + 4369363.
It is an arithmetic number, because the mean of its divisors is an integer number (19662093).
Almost surely, 287387070 is an apocalyptic number.
87387070 is a deficient number, since it is larger than the sum of its proper divisors (69909674).
87387070 is a wasteful number, since it uses less digits than its factorization.
87387070 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8738714.
The product of its (nonzero) digits is 65856, while the sum is 40.
The square root of 87387070 is about 9348.1051555917. The cubic root of 87387070 is about 443.7609262667.
The spelling of 87387070 in words is "eighty-seven million, three hundred eighty-seven thousand, seventy".
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