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3143423111 = 28051112061
BaseRepresentation
bin1011101101011100…
…1101010010000111
322010001220102212012
42323113031102013
522414204014421
61235530244435
7140616440603
oct27327152207
98101812765
103143423111
111373420344
1273888671b
133b131c99a
1421b69c503
15135e7495b
hexbb5cd487

3143423111 has 4 divisors (see below), whose sum is σ = 3143563224. Its totient is φ = 3143283000.

The previous prime is 3143423089. The next prime is 3143423123. The reversal of 3143423111 is 1113243413.

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 3143423111 - 26 = 3143423047 is a prime.

It is a super-2 number, since 2×31434231112 = 19762217709537836642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3143423161) 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, 27980 + ... + 84081.

It is an arithmetic number, because the mean of its divisors is an integer number (785890806).

Almost surely, 23143423111 is an apocalyptic number.

3143423111 is a deficient number, since it is larger than the sum of its proper divisors (140113).

3143423111 is a wasteful number, since it uses less digits than its factorization.

3143423111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140112.

The product of its digits is 864, while the sum is 23.

The square root of 3143423111 is about 56066.2386022105. The cubic root of 3143423111 is about 1464.8762818020.

Adding to 3143423111 its reverse (1113243413), we get a palindrome (4256666524).

It can be divided in two parts, 31434 and 23111, that added together give a palindrome (54545).

The spelling of 3143423111 in words is "three billion, one hundred forty-three million, four hundred twenty-three thousand, one hundred eleven".

Divisors: 1 28051 112061 3143423111