Base | Representation |
---|---|
bin | 1010011000111… |
… | …01010110100111 |
3 | 20001222210010022 |
4 | 11030131112213 |
5 | 134302331124 |
6 | 12351545355 |
7 | 2105531402 |
oct | 514352647 |
9 | 201883108 |
10 | 87152039 |
11 | 45216687 |
12 | 2522b25b |
13 | 15095870 |
14 | b808d39 |
15 | 79b7c5e |
hex | 531d5a7 |
87152039 has 4 divisors (see below), whose sum is σ = 93856056. Its totient is φ = 80448024.
The previous prime is 87152029. The next prime is 87152063. The reversal of 87152039 is 93025178.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 87152039 - 28 = 87151783 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87152029) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3351989 + ... + 3352014.
It is an arithmetic number, because the mean of its divisors is an integer number (23464014).
Almost surely, 287152039 is an apocalyptic number.
87152039 is a deficient number, since it is larger than the sum of its proper divisors (6704017).
87152039 is a wasteful number, since it uses less digits than its factorization.
87152039 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6704016.
The product of its (nonzero) digits is 15120, while the sum is 35.
The square root of 87152039 is about 9335.5256413338. The cubic root of 87152039 is about 443.3627315132.
The spelling of 87152039 in words is "eighty-seven million, one hundred fifty-two thousand, thirty-nine".
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