Base | Representation |
---|---|
bin | 1010011000000… |
… | …01100001001001 |
3 | 20001202222201120 |
4 | 11030001201021 |
5 | 134240204100 |
6 | 12345305453 |
7 | 2104545114 |
oct | 514014111 |
9 | 201688646 |
10 | 87038025 |
11 | 45148a58 |
12 | 25195289 |
13 | 150559b9 |
14 | b7b957b |
15 | 79940a0 |
hex | 5301849 |
87038025 has 24 divisors (see below), whose sum is σ = 146059104. Its totient is φ = 45724800.
The previous prime is 87037991. The next prime is 87038041. The reversal of 87038025 is 52083078.
It is not a de Polignac number, because 87038025 - 27 = 87037897 is a prime.
It is a super-3 number, since 3×870380253 (a number of 25 digits) contains 333 as substring.
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3636 + ... + 13685.
It is an arithmetic number, because the mean of its divisors is an integer number (6085796).
Almost surely, 287038025 is an apocalyptic number.
It is an amenable number.
87038025 is a deficient number, since it is larger than the sum of its proper divisors (59021079).
87038025 is a wasteful number, since it uses less digits than its factorization.
87038025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17401 (or 17396 counting only the distinct ones).
The product of its (nonzero) digits is 13440, while the sum is 33.
The square root of 87038025 is about 9329.4171843690. The cubic root of 87038025 is about 443.1693085465.
The spelling of 87038025 in words is "eighty-seven million, thirty-eight thousand, twenty-five".
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