Base | Representation |
---|---|
bin | 10000010111100010… |
… | …01011001111101001 |
3 | 211200101222220110100 |
4 | 20023301023033221 |
5 | 120444032000311 |
6 | 4011543540013 |
7 | 430521312222 |
oct | 101361131751 |
9 | 24611886410 |
10 | 8787375081 |
11 | 37aa275a61 |
12 | 1852a5a609 |
13 | aa06c5734 |
14 | 5d50a8249 |
15 | 3666cba56 |
hex | 20bc4b3e9 |
8787375081 has 9 divisors (see below), whose sum is σ = 12693281341. Its totient is φ = 5858062572.
The previous prime is 8787375067. The next prime is 8787375109. The reversal of 8787375081 is 1805737878.
The square root of 8787375081 is 93741.
It is a perfect power (a square), and thus also a powerful number.
8787375081 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (9).
It is not a de Polignac number, because 8787375081 - 25 = 8787375049 is a prime.
It is a super-2 number, since 2×87873750812 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (8787385081) 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 8 ways as a sum of consecutive naturals, for example, 265600 + ... + 296846.
Almost surely, 28787375081 is an apocalyptic number.
8787375081 is the 93741-st square number.
8787375081 is the 46871-st centered octagonal number.
It is an amenable number.
8787375081 is a deficient number, since it is larger than the sum of its proper divisors (3905906260).
8787375081 is an frugal number, since it uses more digits than its factorization.
8787375081 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 62500 (or 31250 counting only the distinct ones).
The product of its (nonzero) digits is 2634240, while the sum is 54.
The cubic root of 8787375081 is about 2063.5724513559.
The spelling of 8787375081 in words is "eight billion, seven hundred eighty-seven million, three hundred seventy-five thousand, eighty-one".
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