Base | Representation |
---|---|
bin | 1010011000000… |
… | …10000111111110 |
3 | 20001210010010121 |
4 | 11030002013332 |
5 | 134240244020 |
6 | 12345325154 |
7 | 2104555264 |
oct | 514020776 |
9 | 201703117 |
10 | 87040510 |
11 | 4514a907 |
12 | 251967ba |
13 | 15056b7b |
14 | b7ba434 |
15 | 7994baa |
hex | 53021fe |
87040510 has 64 divisors (see below), whose sum is σ = 175519872. Its totient is φ = 30908416.
The previous prime is 87040507. The next prime is 87040531. The reversal of 87040510 is 1504078.
It is a super-3 number, since 3×870405103 (a number of 25 digits) contains 333 as substring.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 441732 + ... + 441928.
It is an arithmetic number, because the mean of its divisors is an integer number (2742498).
Almost surely, 287040510 is an apocalyptic number.
87040510 is an abundant number, since it is smaller than the sum of its proper divisors (88479362).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87040510 is a wasteful number, since it uses less digits than its factorization.
87040510 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 357.
The product of its (nonzero) digits is 1120, while the sum is 25.
The square root of 87040510 is about 9329.5503642994. The cubic root of 87040510 is about 443.1735261103.
Adding to 87040510 its reverse (1504078), we get a palindrome (88544588).
The spelling of 87040510 in words is "eighty-seven million, forty thousand, five hundred ten".
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