Base | Representation |
---|---|
bin | 10001000100101… |
… | …001011101101111 |
3 | 201221222012120210 |
4 | 101010221131233 |
5 | 1041311243322 |
6 | 44231113503 |
7 | 10045424025 |
oct | 2104513557 |
9 | 657865523 |
10 | 286431087 |
11 | 137756a08 |
12 | 7bb12893 |
13 | 47459967 |
14 | 2a080715 |
15 | 1a22d70c |
hex | 1112976f |
286431087 has 8 divisors (see below), whose sum is σ = 382005936. Its totient is φ = 190905152.
The previous prime is 286431073. The next prime is 286431143. The reversal of 286431087 is 780134682.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 286431087 - 212 = 286426991 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (286431007) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4843 + ... + 24419.
It is an arithmetic number, because the mean of its divisors is an integer number (47750742).
Almost surely, 2286431087 is an apocalyptic number.
286431087 is a deficient number, since it is larger than the sum of its proper divisors (95574849).
286431087 is a wasteful number, since it uses less digits than its factorization.
286431087 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 24457.
The product of its (nonzero) digits is 64512, while the sum is 39.
The square root of 286431087 is about 16924.2750804872. The cubic root of 286431087 is about 659.1840904811.
The spelling of 286431087 in words is "two hundred eighty-six million, four hundred thirty-one thousand, eighty-seven".
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