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7143144916 = 221785786229
BaseRepresentation
bin1101010011100001…
…11011110111010100
3200102211002100200211
412221300323313110
5104112121114131
63140450215204
7342004505245
oct65160736724
920384070624
107143144916
113036134556
121474284504
1389ab7488b
144ba97cccc
152bc1925b1
hex1a9c3bdd4

7143144916 has 6 divisors (see below), whose sum is σ = 12500503610. Its totient is φ = 3571572456.

The previous prime is 7143144913. The next prime is 7143144923. The reversal of 7143144916 is 6194413417.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5718384400 + 1424760516 = 75620^2 + 37746^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7143144913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 892893111 + ... + 892893118.

Almost surely, 27143144916 is an apocalyptic number.

It is an amenable number.

7143144916 is a deficient number, since it is larger than the sum of its proper divisors (5357358694).

7143144916 is a wasteful number, since it uses less digits than its factorization.

7143144916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785786233 (or 1785786231 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 7143144916 is about 84517.1279445770. The cubic root of 7143144916 is about 1925.8826483337.

The spelling of 7143144916 in words is "seven billion, one hundred forty-three million, one hundred forty-four thousand, nine hundred sixteen".

Divisors: 1 2 4 1785786229 3571572458 7143144916