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6907213128872 = 237748716474301
BaseRepresentation
bin110010010000011010111…
…1111000010010010101000
3220110022201120002112202202
41210200311333002102220
51401131433030110442
622405044020515332
71312013115606020
oct144406577022250
926408646075682
106907213128872
112223372816781
129367b784bb48
133b1469324ba4
1419c44d170a80
15bea1487cc32
hex64835fc24a8

6907213128872 has 32 divisors (see below), whose sum is σ = 14803148805120. Its totient is φ = 2959838635200.

The previous prime is 6907213128869. The next prime is 6907213128883. The reversal of 6907213128872 is 2788213127096.

It is a Harshad number since it is a multiple of its sum of digits (56).

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 7 ways as a sum of consecutive naturals, for example, 7817879 + ... + 8656422.

It is an arithmetic number, because the mean of its divisors is an integer number (462598400160).

Almost surely, 26907213128872 is an apocalyptic number.

It is an amenable number.

6907213128872 is an abundant number, since it is smaller than the sum of its proper divisors (7895935676248).

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

6907213128872 is a wasteful number, since it uses less digits than its factorization.

6907213128872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16481801 (or 16481797 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 56.

The spelling of 6907213128872 in words is "six trillion, nine hundred seven billion, two hundred thirteen million, one hundred twenty-eight thousand, eight hundred seventy-two".

Divisors: 1 2 4 7 8 14 28 56 7487 14974 29948 52409 59896 104818 209636 419272 16474301 32948602 65897204 115320107 131794408 230640214 461280428 922560856 123343091587 246686183174 493372366348 863401641109 986744732696 1726803282218 3453606564436 6907213128872