Base | Representation |
---|---|
bin | 1010010000010… |
… | …11101001010011 |
3 | 12222212211020210 |
4 | 11020023221103 |
5 | 134010442211 |
6 | 12311535203 |
7 | 2063152020 |
oct | 510135123 |
9 | 188784223 |
10 | 86030931 |
11 | 44620348 |
12 | 2498a503 |
13 | 14a9249c |
14 | b5d6547 |
15 | 78459a6 |
hex | 520ba53 |
86030931 has 32 divisors (see below), whose sum is σ = 139898880. Its totient is φ = 45904896.
The previous prime is 86030899. The next prime is 86030933. The reversal of 86030931 is 13903068.
It is not a de Polignac number, because 86030931 - 25 = 86030899 is a prime.
It is a super-3 number, since 3×860309313 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is not an unprimeable number, because it can be changed into a prime (86030933) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48030 + ... + 49788.
It is an arithmetic number, because the mean of its divisors is an integer number (4371840).
Almost surely, 286030931 is an apocalyptic number.
86030931 is a deficient number, since it is larger than the sum of its proper divisors (53867949).
86030931 is a wasteful number, since it uses less digits than its factorization.
86030931 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1923.
The product of its (nonzero) digits is 3888, while the sum is 30.
The square root of 86030931 is about 9275.2860333253. The cubic root of 86030931 is about 441.4534083460.
Adding to 86030931 its reverse (13903068), we get a palindrome (99933999).
The spelling of 86030931 in words is "eighty-six million, thirty thousand, nine hundred thirty-one".
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