Base | Representation |
---|---|
bin | 11010110101011101… |
… | …011101000000110111 |
3 | 2202101010000001210110 |
4 | 122311131131000313 |
5 | 433002413412022 |
6 | 21123112154103 |
7 | 2040020444403 |
oct | 326535350067 |
9 | 82333001713 |
10 | 28814200887 |
11 | 1124695766a |
12 | 5701998933 |
13 | 2942803614 |
14 | 1574b74103 |
15 | b3999600c |
hex | 6b575d037 |
28814200887 has 8 divisors (see below), whose sum is σ = 38426460160. Its totient is φ = 19205704440.
The previous prime is 28814200871. The next prime is 28814200931. The reversal of 28814200887 is 78800241882.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 28814200887 - 24 = 28814200871 is a prime.
It is a super-3 number, since 3×288142008873 (a number of 32 digits) contains 333 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28814200087) 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, 922789 + ... + 953502.
It is an arithmetic number, because the mean of its divisors is an integer number (4803307520).
Almost surely, 228814200887 is an apocalyptic number.
28814200887 is a deficient number, since it is larger than the sum of its proper divisors (9612259273).
28814200887 is a wasteful number, since it uses less digits than its factorization.
28814200887 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1881413.
The product of its (nonzero) digits is 458752, while the sum is 48.
The spelling of 28814200887 in words is "twenty-eight billion, eight hundred fourteen million, two hundred thousand, eight hundred eighty-seven".
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