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13671268115869 = 7131931307830833
BaseRepresentation
bin1100011011110001011100…
…0101000110010110011101
31210101221221011212222120201
43012330113011012112131
53242442224114201434
645024254401543501
72610500524423030
oct306742705062635
953357834788521
1013671268115869
1143a0a52495601
121649700044b91
1378226c6b3790
1435399b4a3017
1518a94b108614
hexc6f1714659d

13671268115869 has 64 divisors (see below), whose sum is σ = 18342687784960. Its totient is φ = 9884640936960.

The previous prime is 13671268115863. The next prime is 13671268115941. The reversal of 13671268115869 is 96851186217631.

It is not a de Polignac number, because 13671268115869 - 23 = 13671268115861 is a prime.

It is a super-2 number, since 2×136712681158692 (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13671268115869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13671268115861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16039477 + ... + 16870309.

It is an arithmetic number, because the mean of its divisors is an integer number (286604496640).

Almost surely, 213671268115869 is an apocalyptic number.

13671268115869 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13671268115869 is a deficient number, since it is larger than the sum of its proper divisors (4671419669091).

13671268115869 is a wasteful number, since it uses less digits than its factorization.

13671268115869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831210.

The product of its digits is 26127360, while the sum is 64.

The spelling of 13671268115869 in words is "thirteen trillion, six hundred seventy-one billion, two hundred sixty-eight million, one hundred fifteen thousand, eight hundred sixty-nine".

Divisors: 1 7 13 19 31 91 133 217 247 307 403 589 1729 2149 2821 3991 4123 5833 7657 9517 27937 40831 53599 66619 75829 123721 180823 530803 830833 866047 1265761 2350699 5815831 10800829 15785827 16454893 25755823 75605803 110500789 180290761 205215751 255065731 334825699 489360637 1436510257 1785460117 2343779893 3315854503 3425524459 4846248889 6361688281 7907037661 23210981521 33923742223 44531817967 55349263627 63001235557 102791489593 150233715559 441008648899 719540427151 1051636008913 1953038302267 13671268115869