Base | Representation |
---|---|
bin | 1010011110100… |
… | …00110110100110 |
3 | 20010101010200002 |
4 | 11033100312212 |
5 | 134444343040 |
6 | 12415421302 |
7 | 2115013052 |
oct | 517206646 |
9 | 203333602 |
10 | 87887270 |
11 | 45679009 |
12 | 25524832 |
13 | 15292403 |
14 | b95ac62 |
15 | 7ab0a15 |
hex | 53d0da6 |
87887270 has 32 divisors (see below), whose sum is σ = 162641952. Its totient is φ = 34175232.
The previous prime is 87887251. The next prime is 87887273. The reversal of 87887270 is 7278878.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87887273) 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, 134264 + ... + 134916.
It is an arithmetic number, because the mean of its divisors is an integer number (5082561).
Almost surely, 287887270 is an apocalyptic number.
87887270 is a deficient number, since it is larger than the sum of its proper divisors (74754682).
87887270 is a wasteful number, since it uses less digits than its factorization.
87887270 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1016.
The product of its (nonzero) digits is 351232, while the sum is 47.
The square root of 87887270 is about 9374.8210649591. The cubic root of 87887270 is about 444.6060056846.
The spelling of 87887270 in words is "eighty-seven million, eight hundred eighty-seven thousand, two hundred seventy".
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