Base | Representation |
---|---|
bin | 1010011001100… |
… | …01110110100001 |
3 | 20002011001022000 |
4 | 11030301312201 |
5 | 134313023001 |
6 | 12353434213 |
7 | 2106331236 |
oct | 514616641 |
9 | 202131260 |
10 | 87236001 |
11 | 45273776 |
12 | 2526b969 |
13 | 150c4b48 |
14 | b82b78d |
15 | 79d2a86 |
hex | 5331da1 |
87236001 has 8 divisors (see below), whose sum is σ = 129238560. Its totient is φ = 58157316.
The previous prime is 87235969. The next prime is 87236021. The reversal of 87236001 is 10063278.
It is not a de Polignac number, because 87236001 - 25 = 87235969 is a prime.
It is a super-2 number, since 2×872360012 = 15220239740944002, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 3230963 = 87236001 / (8 + 7 + 2 + 3 + 6 + 0 + 0 + 1).
It is not an unprimeable number, because it can be changed into a prime (87236021) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1615455 + ... + 1615508.
It is an arithmetic number, because the mean of its divisors is an integer number (16154820).
Almost surely, 287236001 is an apocalyptic number.
It is an amenable number.
87236001 is a deficient number, since it is larger than the sum of its proper divisors (42002559).
87236001 is a wasteful number, since it uses less digits than its factorization.
87236001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3230972 (or 3230966 counting only the distinct ones).
The product of its (nonzero) digits is 2016, while the sum is 27.
The square root of 87236001 is about 9340.0214667848. The cubic root of 87236001 is about 443.5050639021.
Adding to 87236001 its reverse (10063278), we get a palindrome (97299279).
The spelling of 87236001 in words is "eighty-seven million, two hundred thirty-six thousand, one".
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