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668600330 = 25288723159
BaseRepresentation
bin100111110110100…
…000100000001010
31201121002102020012
4213312200200022
52332130202310
6150202231522
722366003046
oct4766404012
91647072205
10668600330
11313453362
12167ab55a2
13a86972c8
1464b23026
153da6dc05
hex27da080a

668600330 has 16 divisors (see below), whose sum is σ = 1203949440. Its totient is φ = 267335952.

The previous prime is 668600299. The next prime is 668600341. The reversal of 668600330 is 33006866.

It is a happy number.

It is a super-2 number, since 2×6686003302 = 894052802552217800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17291 + ... + 40449.

It is an arithmetic number, because the mean of its divisors is an integer number (75246840).

Almost surely, 2668600330 is an apocalyptic number.

668600330 is a deficient number, since it is larger than the sum of its proper divisors (535349110).

668600330 is a wasteful number, since it uses less digits than its factorization.

668600330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26053.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 668600330 is about 25857.3070910333. The cubic root of 668600330 is about 874.4242547152.

The spelling of 668600330 in words is "six hundred sixty-eight million, six hundred thousand, three hundred thirty".

Divisors: 1 2 5 10 2887 5774 14435 23159 28870 46318 115795 231590 66860033 133720066 334300165 668600330