Base | Representation |
---|---|
bin | 10001000111001… |
… | …000001011110001 |
3 | 202000012020101002 |
4 | 101013020023301 |
5 | 1041443044301 |
6 | 44253051345 |
7 | 10054102301 |
oct | 2107101361 |
9 | 660166332 |
10 | 287081201 |
11 | 1380603a0 |
12 | 80186b55 |
13 | 47626844 |
14 | 2a1ad601 |
15 | 1a30b16b |
hex | 111c82f1 |
287081201 has 16 divisors (see below), whose sum is σ = 321592128. Its totient is φ = 254016000.
The previous prime is 287081191. The next prime is 287081209. The reversal of 287081201 is 102180782.
It is a cyclic number.
It is not a de Polignac number, because 287081201 - 222 = 282886897 is a prime.
It is not an unprimeable number, because it can be changed into a prime (287081209) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158501 + ... + 160301.
It is an arithmetic number, because the mean of its divisors is an integer number (20099508).
Almost surely, 2287081201 is an apocalyptic number.
It is an amenable number.
287081201 is a deficient number, since it is larger than the sum of its proper divisors (34510927).
287081201 is a wasteful number, since it uses less digits than its factorization.
287081201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2192.
The product of its (nonzero) digits is 1792, while the sum is 29.
The square root of 287081201 is about 16943.4707483443. The cubic root of 287081201 is about 659.6824313968.
The spelling of 287081201 in words is "two hundred eighty-seven million, eighty-one thousand, two hundred one".
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