Base | Representation |
---|---|
bin | 1010011010001… |
… | …11010100101101 |
3 | 20002022111221100 |
4 | 11031013110231 |
5 | 134323331244 |
6 | 12355353313 |
7 | 2110145526 |
oct | 515072455 |
9 | 202274840 |
10 | 87323949 |
11 | 45323859 |
12 | 252b2839 |
13 | 15125b9b |
14 | b85184d |
15 | 79edb69 |
hex | 534752d |
87323949 has 12 divisors (see below), whose sum is σ = 126693216. Its totient is φ = 57958152.
The previous prime is 87323941. The next prime is 87323963. The reversal of 87323949 is 94932378.
It is a happy number.
It is not a de Polignac number, because 87323949 - 23 = 87323941 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87323941) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19329 + ... + 23414.
It is an arithmetic number, because the mean of its divisors is an integer number (10557768).
Almost surely, 287323949 is an apocalyptic number.
It is an amenable number.
87323949 is a deficient number, since it is larger than the sum of its proper divisors (39369267).
87323949 is a wasteful number, since it uses less digits than its factorization.
87323949 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 42976 (or 42973 counting only the distinct ones).
The product of its digits is 326592, while the sum is 45.
The square root of 87323949 is about 9344.7284069683. The cubic root of 87323949 is about 443.6540554588.
The spelling of 87323949 in words is "eighty-seven million, three hundred twenty-three thousand, nine hundred forty-nine".
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