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11142432151 = 67791643669
BaseRepresentation
bin10100110000010010…
…00000010110010111
31001202112110012102021
422120021000112113
5140304430312101
65041352554011
7543056052634
oct123011002627
931675405367
1011142432151
1147a8681214
1221ab6b2907
1310875a6a26
14779b8918b
154533265a1
hex298240597

11142432151 has 4 divisors (see below), whose sum is σ = 11144082600. Its totient is φ = 11140781704.

The previous prime is 11142432149. The next prime is 11142432209. The reversal of 11142432151 is 15123424111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15123424111 = 17889613183.

It is a cyclic number.

It is not a de Polignac number, because 11142432151 - 21 = 11142432149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11142462151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 815056 + ... + 828613.

It is an arithmetic number, because the mean of its divisors is an integer number (2786020650).

Almost surely, 211142432151 is an apocalyptic number.

11142432151 is a deficient number, since it is larger than the sum of its proper divisors (1650449).

11142432151 is an equidigital number, since it uses as much as digits as its factorization.

11142432151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650448.

The product of its digits is 960, while the sum is 25.

Adding to 11142432151 its reverse (15123424111), we get a palindrome (26265856262).

The spelling of 11142432151 in words is "eleven billion, one hundred forty-two million, four hundred thirty-two thousand, one hundred fifty-one".

Divisors: 1 6779 1643669 11142432151