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12170137659 = 319213511187
BaseRepresentation
bin10110101010110010…
…11001000000111011
31011102011021001100020
423111121121000323
5144411023401114
65331344141523
7610405314621
oct132531310073
934364231306
1012170137659
1151857a8609
1224379078a3
1311bc4946b4
14836469511
154b367baa9
hex2d565903b

12170137659 has 8 divisors (see below), whose sum is σ = 17080895040. Its totient is φ = 7686402696.

The previous prime is 12170137579. The next prime is 12170137669. The reversal of 12170137659 is 95673107121.

12170137659 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12170137659 - 213 = 12170129467 is a prime.

It is a super-2 number, since 2×121701376592 (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 12170137659.

It is not an unprimeable number, because it can be changed into a prime (12170137669) 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 7 ways as a sum of consecutive naturals, for example, 106755537 + ... + 106755650.

It is an arithmetic number, because the mean of its divisors is an integer number (2135111880).

Almost surely, 212170137659 is an apocalyptic number.

12170137659 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12170137659 is a deficient number, since it is larger than the sum of its proper divisors (4910757381).

12170137659 is a wasteful number, since it uses less digits than its factorization.

12170137659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213511209.

The product of its (nonzero) digits is 79380, while the sum is 42.

The spelling of 12170137659 in words is "twelve billion, one hundred seventy million, one hundred thirty-seven thousand, six hundred fifty-nine".

Divisors: 1 3 19 57 213511187 640533561 4056712553 12170137659