Base | Representation |
---|---|
bin | 1000010110110101011… |
… | …10000111111110010000 |
3 | 1000110011002121111212201 |
4 | 10023122232013332100 |
5 | 14201024131202104 |
6 | 335524210132544 |
7 | 26513350224364 |
oct | 4133256077620 |
9 | 1013132544781 |
10 | 287137365904 |
11 | 100857614994 |
12 | 47795881154 |
13 | 2110005430c |
14 | dc7cb332a4 |
15 | 77083430a4 |
hex | 42dab87f90 |
287137365904 has 15 divisors (see below), whose sum is σ = 556332799323. Its totient is φ = 143567611248.
The previous prime is 287137365899. The next prime is 287137365943. The reversal of 287137365904 is 409563731782.
The square root of 287137365904 is 535852.
It is a perfect power (a square), and thus also a powerful number.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2076427 + ... + 2210389.
It is a 1-persistent number, because it is pandigital, but 2⋅287137365904 = 574274731808 is not.
Almost surely, 2287137365904 is an apocalyptic number.
287137365904 is the 535852-nd square number.
It is an amenable number.
287137365904 is a deficient number, since it is larger than the sum of its proper divisors (269195433419).
287137365904 is an frugal number, since it uses more digits than its factorization.
287137365904 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 267934 (or 133965 counting only the distinct ones).
The product of its (nonzero) digits is 7620480, while the sum is 55.
The spelling of 287137365904 in words is "two hundred eighty-seven billion, one hundred thirty-seven million, three hundred sixty-five thousand, nine hundred four".
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