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868732711390 = 25376173805391
BaseRepresentation
bin11001010010001001000…
…00010011000111011110
310002001100110212020201001
430221010200103013132
5103213131033231030
61503031300540514
7116523002131465
oct14510440230736
93061313766631
10868732711390
11305477a71105
121204489b173a
1363bc89a01bb
14300929339dc
15178e7524cca
hexca448131de

868732711390 has 32 divisors (see below), whose sum is σ = 1608584863104. Its totient is φ = 337553314560.

The previous prime is 868732711367. The next prime is 868732711391. The reversal of 868732711390 is 93117237868.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868732711391) 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 15 ways as a sum of consecutive naturals, for example, 1674406 + ... + 2130985.

It is an arithmetic number, because the mean of its divisors is an integer number (50268276972).

Almost surely, 2868732711390 is an apocalyptic number.

868732711390 is a deficient number, since it is larger than the sum of its proper divisors (739852151714).

868732711390 is a wasteful number, since it uses less digits than its factorization.

868732711390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3806052.

The product of its (nonzero) digits is 3048192, while the sum is 55.

The spelling of 868732711390 in words is "eight hundred sixty-eight billion, seven hundred thirty-two million, seven hundred eleven thousand, three hundred ninety".

Divisors: 1 2 5 10 37 74 185 370 617 1234 3085 6170 22829 45658 114145 228290 3805391 7610782 19026955 38053910 140799467 281598934 703997335 1407994670 2347926247 4695852494 11739631235 23479262470 86873271139 173746542278 434366355695 868732711390