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168880219442 = 2118279282193
BaseRepresentation
bin1001110101001000001…
…0111010010100110010
3121010220112221000222022
42131102002322110302
510231331314010232
6205325453111442
715126003115544
oct2352202722462
9533815830868
10168880219442
11656925324a0
1228891788582
1312c04c6bb3c
148261069694
1545d63a8812
hex27520ba532

168880219442 has 16 divisors (see below), whose sum is σ = 276683638752. Its totient is φ = 76670905920.

The previous prime is 168880219441. The next prime is 168880219477. The reversal of 168880219442 is 244912088861.

It is not an unprimeable number, because it can be changed into a prime (168880219441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4622903 + ... + 4659290.

It is an arithmetic number, because the mean of its divisors is an integer number (17292727422).

Almost surely, 2168880219442 is an apocalyptic number.

168880219442 is a deficient number, since it is larger than the sum of its proper divisors (107803419310).

168880219442 is a wasteful number, since it uses less digits than its factorization.

168880219442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9283033.

The product of its (nonzero) digits is 1769472, while the sum is 53.

The spelling of 168880219442 in words is "one hundred sixty-eight billion, eight hundred eighty million, two hundred nineteen thousand, four hundred forty-two".

Divisors: 1 2 11 22 827 1654 9097 18194 9282193 18564386 102104123 204208246 7676373611 15352747222 84440109721 168880219442