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2128888212 = 2231119848839
BaseRepresentation
bin111111011100100…
…0100000110010100
312111100212201121120
41332321010012110
513324443410322
6551125243540
7103520152113
oct17671040624
95440781546
102128888212
119a277a250
124b4b635b0
1327c093a89
14162a49c7a
15c6d71a5c
hex7ee44194

2128888212 has 48 divisors (see below), whose sum is σ = 5704204800. Its totient is φ = 611163360.

The previous prime is 2128888207. The next prime is 2128888241.

2128888212 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421912 + ... + 426927.

It is an arithmetic number, because the mean of its divisors is an integer number (118837600).

Almost surely, 22128888212 is an apocalyptic number.

2128888212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2128888212 is an abundant number, since it is smaller than the sum of its proper divisors (3575316588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2128888212 is a wasteful number, since it uses less digits than its factorization.

2128888212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848876 (or 848874 counting only the distinct ones).

The product of its digits is 65536, while the sum is 42.

The square root of 2128888212 is about 46139.8765928129. The cubic root of 2128888212 is about 1286.4244499473.

The spelling of 2128888212 in words is "two billion, one hundred twenty-eight million, eight hundred eighty-eight thousand, two hundred twelve".

Divisors: 1 2 3 4 6 11 12 19 22 33 38 44 57 66 76 114 132 209 228 418 627 836 1254 2508 848839 1697678 2546517 3395356 5093034 9337229 10186068 16127941 18674458 28011687 32255882 37348916 48383823 56023374 64511764 96767646 112046748 177407351 193535292 354814702 532222053 709629404 1064444106 2128888212