Search a number
-
+
284425406825 = 52710211591859
BaseRepresentation
bin1000010001110010001…
…00110100100101101001
31000012011002120201101212
410020321010310211221
514130000401004300
6334355131322505
726356220032220
oct4107104644551
91005132521355
10284425406825
11aa6957aa99a
12471595b0435
1320a8a2413c1
14daa28a9cb7
1575ea1e9935
hex4239134969

284425406825 has 24 divisors (see below), whose sum is σ = 403466468160. Its totient is φ = 194843419200.

The previous prime is 284425406801. The next prime is 284425406831. The reversal of 284425406825 is 528604524482.

It is not a de Polignac number, because 284425406825 - 216 = 284425341289 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 617255 + ... + 974604.

It is an arithmetic number, because the mean of its divisors is an integer number (16811102840).

Almost surely, 2284425406825 is an apocalyptic number.

284425406825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

284425406825 is a deficient number, since it is larger than the sum of its proper divisors (119041061335).

284425406825 is a wasteful number, since it uses less digits than its factorization.

284425406825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1592897 (or 1592892 counting only the distinct ones).

The product of its (nonzero) digits is 4915200, while the sum is 50.

The spelling of 284425406825 in words is "two hundred eighty-four billion, four hundred twenty-five million, four hundred six thousand, eight hundred twenty-five".

Divisors: 1 5 7 25 35 175 1021 5105 7147 25525 35735 178675 1591859 7959295 11143013 39796475 55715065 278575325 1625288039 8126440195 11377016273 40632200975 56885081365 284425406825