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108128449306 = 21710131487609
BaseRepresentation
bin110010010110011110…
…1010011001100011010
3101100002122202100110201
41210230331103030122
53232421340334211
6121401251532414
710545344440303
oct1445475231432
9340078670421
10108128449306
11419477663a9
1218b57bba10a
13a272847567
14533a8037aa
152c2cb590c1
hex192cf5331a

108128449306 has 16 divisors (see below), whose sum is σ = 173433755880. Its totient is φ = 50380172800.

The previous prime is 108128449301. The next prime is 108128449349. The reversal of 108128449306 is 603944821801.

It can be written as a sum of positive squares in 4 ways, for example, as 104707252225 + 3421197081 = 323585^2 + 58491^2 .

It is not an unprimeable number, because it can be changed into a prime (108128449301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15740371 + ... + 15747238.

Almost surely, 2108128449306 is an apocalyptic number.

108128449306 is a deficient number, since it is larger than the sum of its proper divisors (65305306574).

108128449306 is a wasteful number, since it uses less digits than its factorization.

108128449306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31487729.

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 108128449306 in words is "one hundred eight billion, one hundred twenty-eight million, four hundred forty-nine thousand, three hundred six".

Divisors: 1 2 17 34 101 202 1717 3434 31487609 62975218 535289353 1070578706 3180248509 6360497018 54064224653 108128449306