Base | Representation |
---|---|
bin | 1010011010101… |
… | …10100110110001 |
3 | 20002102200210201 |
4 | 11031112212301 |
5 | 134332332140 |
6 | 12400555201 |
7 | 2110526161 |
oct | 515264661 |
9 | 202380721 |
10 | 87386545 |
11 | 45366894 |
12 | 25322b01 |
13 | 1514851c |
14 | b86a5a1 |
15 | 7a1249a |
hex | 53569b1 |
87386545 has 16 divisors (see below), whose sum is σ = 115862400. Its totient is φ = 62934784.
The previous prime is 87386521. The next prime is 87386557. The reversal of 87386545 is 54568378.
It is a cyclic number.
It is not a de Polignac number, because 87386545 - 211 = 87384497 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 87386495 and 87386504.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20395 + ... + 24304.
It is an arithmetic number, because the mean of its divisors is an integer number (7241400).
Almost surely, 287386545 is an apocalyptic number.
87386545 is a gapful number since it is divisible by the number (85) formed by its first and last digit.
It is an amenable number.
87386545 is a deficient number, since it is larger than the sum of its proper divisors (28475855).
87386545 is a wasteful number, since it uses less digits than its factorization.
87386545 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 44744.
The product of its digits is 806400, while the sum is 46.
The square root of 87386545 is about 9348.0770749925. The cubic root of 87386545 is about 443.7600375961.
The spelling of 87386545 in words is "eighty-seven million, three hundred eighty-six thousand, five hundred forty-five".
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