Base | Representation |
---|---|
bin | 1010011010001… |
… | …00100000011010 |
3 | 20002021221002222 |
4 | 11031010200122 |
5 | 134322444120 |
6 | 12355224042 |
7 | 2110100063 |
oct | 515044032 |
9 | 202257088 |
10 | 87312410 |
11 | 45316119 |
12 | 252a8022 |
13 | 15120863 |
14 | b84b56a |
15 | 79ea525 |
hex | 534481a |
87312410 has 32 divisors (see below), whose sum is σ = 166544640. Its totient is φ = 32864832.
The previous prime is 87312397. The next prime is 87312413. The reversal of 87312410 is 1421378.
It is a self number, because there is not a number n which added to its sum of digits gives 87312410.
It is not an unprimeable number, because it can be changed into a prime (87312413) 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, 28367 + ... + 31293.
It is an arithmetic number, because the mean of its divisors is an integer number (5204520).
Almost surely, 287312410 is an apocalyptic number.
87312410 is a deficient number, since it is larger than the sum of its proper divisors (79232230).
87312410 is a wasteful number, since it uses less digits than its factorization.
87312410 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3110.
The product of its (nonzero) digits is 1344, while the sum is 26.
The square root of 87312410 is about 9344.1109796492. The cubic root of 87312410 is about 443.6345130931.
Adding to 87312410 its reverse (1421378), we get a palindrome (88733788).
The spelling of 87312410 in words is "eighty-seven million, three hundred twelve thousand, four hundred ten".
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