Base | Representation |
---|---|
bin | 1010011000001… |
… | …00000111000101 |
3 | 20001210112021220 |
4 | 11030010013011 |
5 | 134241024040 |
6 | 12345430553 |
7 | 2104621065 |
oct | 514040705 |
9 | 201715256 |
10 | 87048645 |
11 | 45155a32 |
12 | 2519b459 |
13 | 1505a798 |
14 | b7bd3a5 |
15 | 79972d0 |
hex | 53041c5 |
87048645 has 16 divisors (see below), whose sum is σ = 139423680. Its totient is φ = 46377344.
The previous prime is 87048601. The next prime is 87048649. The reversal of 87048645 is 54684078.
It is a cyclic number.
It is not a de Polignac number, because 87048645 - 26 = 87048581 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 87048597 and 87048606.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87048649) 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, 15361 + ... + 20249.
It is an arithmetic number, because the mean of its divisors is an integer number (8713980).
Almost surely, 287048645 is an apocalyptic number.
It is an amenable number.
87048645 is a deficient number, since it is larger than the sum of its proper divisors (52375035).
87048645 is a wasteful number, since it uses less digits than its factorization.
87048645 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6084.
The product of its (nonzero) digits is 215040, while the sum is 42.
The square root of 87048645 is about 9329.9863343951. The cubic root of 87048645 is about 443.1873323419.
The spelling of 87048645 in words is "eighty-seven million, forty-eight thousand, six hundred forty-five".
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