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12052500511 = 40130056111
BaseRepresentation
bin10110011100110001…
…01001000000011111
31011002221220110111211
423032120221000133
5144140420004021
65311542525251
7604446364312
oct131630510037
934087813454
1012052500511
115125360027
122404436827
1311a0cb710c
148249a6979
154a81913e1
hex2ce62901f

12052500511 has 4 divisors (see below), whose sum is σ = 12082557024. Its totient is φ = 12022444000.

The previous prime is 12052500479. The next prime is 12052500529. The reversal of 12052500511 is 11500525021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12052500511 - 25 = 12052500479 is a prime.

It is a super-2 number, since 2×120525005112 (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12052500611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15027655 + ... + 15028456.

It is an arithmetic number, because the mean of its divisors is an integer number (3020639256).

Almost surely, 212052500511 is an apocalyptic number.

12052500511 is a deficient number, since it is larger than the sum of its proper divisors (30056513).

12052500511 is an equidigital number, since it uses as much as digits as its factorization.

12052500511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30056512.

The product of its (nonzero) digits is 500, while the sum is 22.

The spelling of 12052500511 in words is "twelve billion, fifty-two million, five hundred thousand, five hundred eleven".

Divisors: 1 401 30056111 12052500511