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12127358055 = 35808490537
BaseRepresentation
bin10110100101101100…
…01100110001100111
31011022011202121202110
423102312030301213
5144314100424210
65323215212103
7606345562011
oct132266146147
934264677673
1012127358055
11516363966a
122425517033
1311b3666917
148308d11b1
154aea2b420
hex2d2d8cc67

12127358055 has 8 divisors (see below), whose sum is σ = 19403772912. Its totient is φ = 6467924288.

The previous prime is 12127358041. The next prime is 12127358093. The reversal of 12127358055 is 55085372121.

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

It is a cyclic number.

It is not a de Polignac number, because 12127358055 - 24 = 12127358039 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404245254 + ... + 404245283.

It is an arithmetic number, because the mean of its divisors is an integer number (2425471614).

Almost surely, 212127358055 is an apocalyptic number.

12127358055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12127358055 is a deficient number, since it is larger than the sum of its proper divisors (7276414857).

12127358055 is an equidigital number, since it uses as much as digits as its factorization.

12127358055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808490545.

The product of its (nonzero) digits is 84000, while the sum is 39.

The spelling of 12127358055 in words is "twelve billion, one hundred twenty-seven million, three hundred fifty-eight thousand, fifty-five".

Divisors: 1 3 5 15 808490537 2425471611 4042452685 12127358055