Base | Representation |
---|---|
bin | 1010011000011… |
… | …10000001100111 |
3 | 20001212120222222 |
4 | 11030032001213 |
5 | 134243324010 |
6 | 12350342555 |
7 | 2105150351 |
oct | 514160147 |
9 | 201776888 |
10 | 87089255 |
11 | 451834a0 |
12 | 251baa5b |
13 | 15073106 |
14 | b7d00d1 |
15 | 79a4355 |
hex | 530e067 |
87089255 has 16 divisors (see below), whose sum is σ = 120009600. Its totient is φ = 60003360.
The previous prime is 87089243. The next prime is 87089257. The reversal of 87089255 is 55298078.
It is a de Polignac number, because none of the positive numbers 2k-87089255 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87089257) 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, 40625 + ... + 42714.
It is an arithmetic number, because the mean of its divisors is an integer number (7500600).
Almost surely, 287089255 is an apocalyptic number.
87089255 is a deficient number, since it is larger than the sum of its proper divisors (32920345).
87089255 is a wasteful number, since it uses less digits than its factorization.
87089255 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 83374.
The product of its (nonzero) digits is 201600, while the sum is 44.
The square root of 87089255 is about 9332.1623967867. The cubic root of 87089255 is about 443.2562403243.
The spelling of 87089255 in words is "eighty-seven million, eighty-nine thousand, two hundred fifty-five".
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