Base | Representation |
---|---|
bin | 1010010111110… |
… | …00101111000001 |
3 | 20001201011101010 |
4 | 11023320233001 |
5 | 134233031144 |
6 | 12344431133 |
7 | 2104335201 |
oct | 513705701 |
9 | 201634333 |
10 | 87002049 |
11 | 45123a22 |
12 | 251784a9 |
13 | 15042504 |
14 | b7aa401 |
15 | 79885b9 |
hex | 52f8bc1 |
87002049 has 8 divisors (see below), whose sum is σ = 117969120. Its totient is φ = 57018176.
The previous prime is 87002033. The next prime is 87002087. The reversal of 87002049 is 94020078.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 87002049 - 24 = 87002033 is a prime.
It is not an unprimeable number, because it can be changed into a prime (87002009) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245592 + ... + 245945.
It is an arithmetic number, because the mean of its divisors is an integer number (14746140).
Almost surely, 287002049 is an apocalyptic number.
It is an amenable number.
87002049 is a deficient number, since it is larger than the sum of its proper divisors (30967071).
87002049 is a wasteful number, since it uses less digits than its factorization.
87002049 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 491599.
The product of its (nonzero) digits is 4032, while the sum is 30.
The square root of 87002049 is about 9327.4888903713. The cubic root of 87002049 is about 443.1082407691.
The spelling of 87002049 in words is "eighty-seven million, two thousand, forty-nine".
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