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13780689163287 = 317270209591437
BaseRepresentation
bin1100100010001001000100…
…0101010001010000010111
31210210102100220220010022120
43020202101011101100113
53301240322411211122
645150432230431023
72621423216115054
oct310422105212027
953712326803276
1013780689163287
1144333a2853002
121666958b02473
1378c689c73b97
14358dbb81c02b
1518d70248e75c
hexc8891151417

13780689163287 has 8 divisors (see below), whose sum is σ = 19455090583536. Its totient is φ = 8646706925952.

The previous prime is 13780689163261. The next prime is 13780689163301. The reversal of 13780689163287 is 78236198608731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13780689163287 - 216 = 13780689097751 is a prime.

It is a super-2 number, since 2×137806891632872 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13780689163207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135104795668 + ... + 135104795769.

It is an arithmetic number, because the mean of its divisors is an integer number (2431886322942).

Almost surely, 213780689163287 is an apocalyptic number.

13780689163287 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13780689163287 is a deficient number, since it is larger than the sum of its proper divisors (5674401420249).

13780689163287 is a wasteful number, since it uses less digits than its factorization.

13780689163287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270209591457.

The product of its (nonzero) digits is 146313216, while the sum is 69.

The spelling of 13780689163287 in words is "thirteen trillion, seven hundred eighty billion, six hundred eighty-nine million, one hundred sixty-three thousand, two hundred eighty-seven".

Divisors: 1 3 17 51 270209591437 810628774311 4593563054429 13780689163287