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12052130555 = 53177755681
BaseRepresentation
bin10110011100101110…
…01110101011111011
31011002221012200000202
423032113032223323
5144140321134210
65311530552415
7604443263603
oct131627165373
934087180022
1012052130555
115125128083
12240429870b
1311a0bb78ca
1482490bc03
154a811b9a5
hex2ce5ceafb

12052130555 has 8 divisors (see below), whose sum is σ = 14929090944. Its totient is φ = 9330681600.

The previous prime is 12052130551. The next prime is 12052130557. The reversal of 12052130555 is 55503125021.

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

It is not a de Polignac number, because 12052130555 - 22 = 12052130551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12052130551) 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, 38877686 + ... + 38877995.

It is an arithmetic number, because the mean of its divisors is an integer number (1866136368).

Almost surely, 212052130555 is an apocalyptic number.

12052130555 is a deficient number, since it is larger than the sum of its proper divisors (2876960389).

12052130555 is an equidigital number, since it uses as much as digits as its factorization.

12052130555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77755717.

The product of its (nonzero) digits is 7500, while the sum is 29.

Adding to 12052130555 its reverse (55503125021), we get a palindrome (67555255576).

The spelling of 12052130555 in words is "twelve billion, fifty-two million, one hundred thirty thousand, five hundred fifty-five".

Divisors: 1 5 31 155 77755681 388778405 2410426111 12052130555