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42143351311 = 137307615703
BaseRepresentation
bin100111001111111100…
…001000001000001111
311000210001011001202101
4213033330020020033
51142302144220221
631205502135531
73021231401305
oct471774101017
9130701131671
1042143351311
1116966906666
1282018815a7
133c8813b489
14207b100275
151169c63d91
hex9cff0820f

42143351311 has 4 divisors (see below), whose sum is σ = 42450967152. Its totient is φ = 41835735472.

The previous prime is 42143351287. The next prime is 42143351317. The reversal of 42143351311 is 11315334124.

42143351311 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 is a cyclic number.

It is not a de Polignac number, because 42143351311 - 27 = 42143351183 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42143351311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42143351317) 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, 153807715 + ... + 153807988.

It is an arithmetic number, because the mean of its divisors is an integer number (10612741788).

Almost surely, 242143351311 is an apocalyptic number.

42143351311 is a deficient number, since it is larger than the sum of its proper divisors (307615841).

42143351311 is a wasteful number, since it uses less digits than its factorization.

42143351311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307615840.

The product of its digits is 4320, while the sum is 28.

Adding to 42143351311 its reverse (11315334124), we get a palindrome (53458685435).

The spelling of 42143351311 in words is "forty-two billion, one hundred forty-three million, three hundred fifty-one thousand, three hundred eleven".

Divisors: 1 137 307615703 42143351311