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668032608270 = 23526893828013
BaseRepresentation
bin10011011100010011101…
…10001010100000001110
32100212022100012122021110
421232021312022200032
541421112321431040
61230520121112450
766156320323506
oct11561166124016
92325270178243
10668032608270
11238346aa0095
12a9576928726
134acc2606a31
142449388ca06
151259c8ac980
hex9b89d8a80e

668032608270 has 32 divisors (see below), whose sum is σ = 1603339813152. Its totient is φ = 178135189632.

The previous prime is 668032608239. The next prime is 668032608289. The reversal of 668032608270 is 72806230866.

It is a happy number.

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, 392784 + ... + 1220796.

It is an arithmetic number, because the mean of its divisors is an integer number (50104369161).

Almost surely, 2668032608270 is an apocalyptic number.

668032608270 is an abundant number, since it is smaller than the sum of its proper divisors (935307204882).

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

668032608270 is a wasteful number, since it uses less digits than its factorization.

668032608270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854916.

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 668032608270 in words is "six hundred sixty-eight billion, thirty-two million, six hundred eight thousand, two hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 26893 53786 80679 134465 161358 268930 403395 806790 828013 1656026 2484039 4140065 4968078 8280130 12420195 24840390 22267753609 44535507218 66803260827 111338768045 133606521654 222677536090 334016304135 668032608270