Search a number
-
+
289472937886 = 21131424447123
BaseRepresentation
bin1000011011001011110…
…11100111111110011110
31000200011212101212022201
410031211323213332132
514220320033003021
6340552041402114
726625260242216
oct4154573477636
91020155355281
10289472937886
11101845a21770
1248127a9933a
13213b2ba2682
1410020dc1246
1577e33de591
hex4365ee7f9e

289472937886 has 16 divisors (see below), whose sum is σ = 488963086848. Its totient is φ = 127334136600.

The previous prime is 289472937823. The next prime is 289472937889. The reversal of 289472937886 is 688739274982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289472937889) 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, 212222880 + ... + 212224243.

It is an arithmetic number, because the mean of its divisors is an integer number (30560192928).

Almost surely, 2289472937886 is an apocalyptic number.

289472937886 is a deficient number, since it is larger than the sum of its proper divisors (199490148962).

289472937886 is a wasteful number, since it uses less digits than its factorization.

289472937886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424447167.

The product of its digits is 585252864, while the sum is 73.

The spelling of 289472937886 in words is "two hundred eighty-nine billion, four hundred seventy-two million, nine hundred thirty-seven thousand, eight hundred eighty-six".

Divisors: 1 2 11 22 31 62 341 682 424447123 848894246 4668918353 9337836706 13157860813 26315721626 144736468943 289472937886