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668032831882 = 213232539439981
BaseRepresentation
bin10011011100010011101…
…11000001000110001010
32100212022100122000000101
421232021313001012022
541421112401110012
61230520130000014
766156322244443
oct11561167010612
92325270560011
10668032831882
11238347133099
12a9576a1600a
134acc2684750
142449390a2ca
151259c903d57
hex9b89dc118a

668032831882 has 32 divisors (see below), whose sum is σ = 1126494714240. Its totient is φ = 294800679360.

The previous prime is 668032831853. The next prime is 668032831891. The reversal of 668032831882 is 288138230866.

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, 1298332 + ... + 1738312.

It is an arithmetic number, because the mean of its divisors is an integer number (35202959820).

Almost surely, 2668032831882 is an apocalyptic number.

668032831882 is a deficient number, since it is larger than the sum of its proper divisors (458461882358).

668032831882 is a wasteful number, since it uses less digits than its factorization.

668032831882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442558.

The product of its (nonzero) digits is 5308416, while the sum is 55.

The spelling of 668032831882 in words is "six hundred sixty-eight billion, thirty-two million, eight hundred thirty-one thousand, eight hundred eighty-two".

Divisors: 1 2 13 23 26 46 299 598 2539 5078 33007 58397 66014 116794 439981 759161 879962 1518322 5719753 10119563 11439506 20239126 131554319 263108638 1117111759 2234223518 14522452867 25693570457 29044905734 51387140914 334016415941 668032831882