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168956838212 = 2281915156783
BaseRepresentation
bin1001110101011010011…
…1001100000101000100
3121011002220002200011112
42131112213030011010
510232010422310322
6205341231224152
715130623300101
oct2352647140504
9534086080145
10168956838212
1165721804298
12288b3378058
1312c17ab71a6
14826b2d1aa8
1545dce905e2
hex27569cc144

168956838212 has 12 divisors (see below), whose sum is σ = 295710621696. Its totient is φ = 84468089160.

The previous prime is 168956838191. The next prime is 168956838217. The reversal of 168956838212 is 212838659861.

It is not an unprimeable number, because it can be changed into a prime (168956838217) 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 3 ways as a sum of consecutive naturals, for example, 2545628 + ... + 2611155.

It is an arithmetic number, because the mean of its divisors is an integer number (24642551808).

Almost surely, 2168956838212 is an apocalyptic number.

It is an amenable number.

168956838212 is a deficient number, since it is larger than the sum of its proper divisors (126753783484).

168956838212 is a wasteful number, since it uses less digits than its factorization.

168956838212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5164978 (or 5164976 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 59.

The spelling of 168956838212 in words is "one hundred sixty-eight billion, nine hundred fifty-six million, eight hundred thirty-eight thousand, two hundred twelve".

Divisors: 1 2 4 8191 16382 32764 5156783 10313566 20627132 42239209553 84478419106 168956838212