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68885720002 = 21122314041117
BaseRepresentation
bin100000000100111101…
…0001010101111000010
320120210202122011002001
41000021322022233002
52112034221020002
651351244014214
74656023646631
oct1001172125702
9216722564061
1068885720002
112723a214010
121142583136a
13665a636c88
143496a3b518
151bd28a8a87
hex1009e8abc2

68885720002 has 16 divisors (see below), whose sum is σ = 113227575552. Its totient is φ = 31171277520.

The previous prime is 68885719993. The next prime is 68885720017. The reversal of 68885720002 is 20002758886.

It is a happy number.

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, 7015653 + ... + 7025464.

It is an arithmetic number, because the mean of its divisors is an integer number (7076723472).

Almost surely, 268885720002 is an apocalyptic number.

68885720002 is a deficient number, since it is larger than the sum of its proper divisors (44341855550).

68885720002 is a wasteful number, since it uses less digits than its factorization.

68885720002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14041353.

The product of its (nonzero) digits is 430080, while the sum is 46.

It can be divided in two parts, 68885 and 720002, that added together give a palindrome (788887).

The spelling of 68885720002 in words is "sixty-eight billion, eight hundred eighty-five million, seven hundred twenty thousand, two".

Divisors: 1 2 11 22 223 446 2453 4906 14041117 28082234 154452287 308904574 3131169091 6262338182 34442860001 68885720002