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68168217702 = 2313953917053
BaseRepresentation
bin111111011111001001…
…000111010001100110
320111221202112020221210
4333133021013101212
52104102030431302
651152133252250
74632162201324
oct773711072146
9214852466853
1068168217702
1126a011aaa02
1211265494086
136574aaa2c0
143429628d14
151b8e8ca66c
hexfdf247466

68168217702 has 32 divisors (see below), whose sum is σ = 146978078688. Its totient is φ = 20952804096.

The previous prime is 68168217701. The next prime is 68168217757. The reversal of 68168217702 is 20771286186.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68168217701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384193 + ... + 532860.

It is an arithmetic number, because the mean of its divisors is an integer number (4593064959).

Almost surely, 268168217702 is an apocalyptic number.

68168217702 is an abundant number, since it is smaller than the sum of its proper divisors (78809860986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68168217702 is a wasteful number, since it uses less digits than its factorization.

68168217702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918024.

The product of its (nonzero) digits is 451584, while the sum is 48.

The spelling of 68168217702 in words is "sixty-eight billion, one hundred sixty-eight million, two hundred seventeen thousand, seven hundred two".

Divisors: 1 2 3 6 13 26 39 78 953 1906 2859 5718 12389 24778 37167 74334 917053 1834106 2751159 5502318 11921689 23843378 35765067 71530134 873951509 1747903018 2621854527 5243709054 11361369617 22722739234 34084108851 68168217702