Base | Representation |
---|---|
bin | 1010011010111… |
… | …00010111010011 |
3 | 20002110220011021 |
4 | 11031130113103 |
5 | 134334111011 |
6 | 12401300311 |
7 | 2110655014 |
oct | 515342723 |
9 | 202426137 |
10 | 87410131 |
11 | 45382586 |
12 | 25334697 |
13 | 15156193 |
14 | b87500b |
15 | 7a19471 |
hex | 535c5d3 |
87410131 has 4 divisors (see below), whose sum is σ = 87482032. Its totient is φ = 87338232.
The previous prime is 87410123. The next prime is 87410137. The reversal of 87410131 is 13101478.
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 87410131 - 23 = 87410123 is a prime.
It is a super-2 number, since 2×874101312 = 15281062002874322, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 87410096 and 87410105.
It is not an unprimeable number, because it can be changed into a prime (87410137) 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, 34095 + ... + 36568.
It is an arithmetic number, because the mean of its divisors is an integer number (21870508).
Almost surely, 287410131 is an apocalyptic number.
87410131 is a deficient number, since it is larger than the sum of its proper divisors (71901).
87410131 is a wasteful number, since it uses less digits than its factorization.
87410131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 71900.
The product of its (nonzero) digits is 672, while the sum is 25.
The square root of 87410131 is about 9349.3385327519. The cubic root of 87410131 is about 443.7999582450.
The spelling of 87410131 in words is "eighty-seven million, four hundred ten thousand, one hundred thirty-one".
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