Base | Representation |
---|---|
bin | 1010011110100… |
… | …00010011111011 |
3 | 20010101000121220 |
4 | 11033100103323 |
5 | 134444310201 |
6 | 12415403123 |
7 | 2115003432 |
oct | 517202373 |
9 | 203330556 |
10 | 87885051 |
11 | 45677381 |
12 | 255234a3 |
13 | 152913b7 |
14 | b95a119 |
15 | 7ab0036 |
hex | 53d04fb |
87885051 has 32 divisors (see below), whose sum is σ = 129408000. Its totient is φ = 52835328.
The previous prime is 87885041. The next prime is 87885067. The reversal of 87885051 is 15058878.
It is not a de Polignac number, because 87885051 - 26 = 87884987 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 87884994 and 87885012.
It is not an unprimeable number, because it can be changed into a prime (87885011) 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, 130251 + ... + 130923.
It is an arithmetic number, because the mean of its divisors is an integer number (4044000).
Almost surely, 287885051 is an apocalyptic number.
87885051 is a deficient number, since it is larger than the sum of its proper divisors (41522949).
87885051 is a wasteful number, since it uses less digits than its factorization.
87885051 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 803.
The product of its (nonzero) digits is 89600, while the sum is 42.
The square root of 87885051 is about 9374.7027152865. The cubic root of 87885051 is about 444.6022638115.
The spelling of 87885051 in words is "eighty-seven million, eight hundred eighty-five thousand, fifty-one".
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