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168060721084 = 22129509324419
BaseRepresentation
bin1001110010000100110…
…0110001011110111100
3121001210102220012120021
42130201030301132330
510223142021033314
6205112300301524
715066462362524
oct2344114613674
9531712805507
10168060721084
1165301994223
12286a32418a4
1312b0424cc79
1481c42a6684
15458947e324
hex27213317bc

168060721084 has 12 divisors (see below), whose sum is σ = 294109439400. Its totient is φ = 84029452688.

The previous prime is 168060721063. The next prime is 168060721093. The reversal of 168060721084 is 480127060861.

168060721084 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 168060721084.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 355827 + ... + 680245.

It is an arithmetic number, because the mean of its divisors is an integer number (24509119950).

Almost surely, 2168060721084 is an apocalyptic number.

It is an amenable number.

168060721084 is a deficient number, since it is larger than the sum of its proper divisors (126048718316).

168060721084 is a wasteful number, since it uses less digits than its factorization.

168060721084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453932 (or 453930 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 43.

The spelling of 168060721084 in words is "one hundred sixty-eight billion, sixty million, seven hundred twenty-one thousand, eighty-four".

Divisors: 1 2 4 129509 259018 324419 518036 648838 1297676 42015180271 84030360542 168060721084