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6987111342 = 2373107149087
BaseRepresentation
bin1101000000111011…
…01101101110101110
3200000221111000212120
412200131231232232
5103302200030332
63113154013410
7335101316001
oct64035555656
920027430776
106987111342
112a66051192
12142bb77266
13874742613
144a3d63538
152ad62032c
hex1a076dbae

6987111342 has 32 divisors (see below), whose sum is σ = 14298135552. Its totient is φ = 2275648704.

The previous prime is 6987111337. The next prime is 6987111353. The reversal of 6987111342 is 2431117896.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 6987111294 and 6987111303.

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 15 ways as a sum of consecutive naturals, for example, 27678 + ... + 121409.

It is an arithmetic number, because the mean of its divisors is an integer number (446816736).

Almost surely, 26987111342 is an apocalyptic number.

6987111342 is an abundant number, since it is smaller than the sum of its proper divisors (7311024210).

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

6987111342 is a wasteful number, since it uses less digits than its factorization.

6987111342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149272.

The product of its digits is 72576, while the sum is 42.

The square root of 6987111342 is about 83588.9427017713. The cubic root of 6987111342 is about 1911.7564083315.

The spelling of 6987111342 in words is "six billion, nine hundred eighty-seven million, one hundred eleven thousand, three hundred forty-two".

Divisors: 1 2 3 6 73 107 146 214 219 321 438 642 7811 15622 23433 46866 149087 298174 447261 894522 10883351 15952309 21766702 31904618 32650053 47856927 65300106 95713854 1164518557 2329037114 3493555671 6987111342