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11212142153 = 37303030869
BaseRepresentation
bin10100111000100101…
…11011011001001001
31001221101121211120012
422130102323121021
5140430302022103
65052323041305
7544563431042
oct123422733111
931841554505
1011212142153
114833a64393
12220ab10235
131098b73554
147851338c9
154594e62d8
hex29c4bb649

11212142153 has 4 divisors (see below), whose sum is σ = 11515173060. Its totient is φ = 10909111248.

The previous prime is 11212142129. The next prime is 11212142159. The reversal of 11212142153 is 35124121211.

11212142153 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9897862144 + 1314280009 = 99488^2 + 36253^2 .

It is a cyclic number.

It is not a de Polignac number, because 11212142153 - 230 = 10138400329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11212142159) 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 3 ways as a sum of consecutive naturals, for example, 151515398 + ... + 151515471.

It is an arithmetic number, because the mean of its divisors is an integer number (2878793265).

Almost surely, 211212142153 is an apocalyptic number.

It is an amenable number.

11212142153 is a deficient number, since it is larger than the sum of its proper divisors (303030907).

11212142153 is an equidigital number, since it uses as much as digits as its factorization.

11212142153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303030906.

The product of its digits is 480, while the sum is 23.

Adding to 11212142153 its reverse (35124121211), we get a palindrome (46336263364).

The spelling of 11212142153 in words is "eleven billion, two hundred twelve million, one hundred forty-two thousand, one hundred fifty-three".

Divisors: 1 37 303030869 11212142153