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8144990593 = 66191230547
BaseRepresentation
bin1111001010111101…
…01011000110000001
3210000122020101121021
413211132223012001
5113140104144333
63424115225441
7405561164155
oct74536530601
923018211537
108144990593
1134aa6a8a93
1216b38a8281
139ca5a9b7c
14573a4b065
1532a0da82d
hex1e57ab181

8144990593 has 4 divisors (see below), whose sum is σ = 8146227760. Its totient is φ = 8143753428.

The previous prime is 8144990563. The next prime is 8144990603. The reversal of 8144990593 is 3950994418.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8144990593 - 229 = 7608119681 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 8144990593.

It is not an unprimeable number, because it can be changed into a prime (8144990543) 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, 608655 + ... + 621892.

It is an arithmetic number, because the mean of its divisors is an integer number (2036556940).

Almost surely, 28144990593 is an apocalyptic number.

It is an amenable number.

8144990593 is a deficient number, since it is larger than the sum of its proper divisors (1237167).

8144990593 is a wasteful number, since it uses less digits than its factorization.

8144990593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237166.

The product of its (nonzero) digits is 1399680, while the sum is 52.

The square root of 8144990593 is about 90249.6016223894. The cubic root of 8144990593 is about 2012.0102816140.

The spelling of 8144990593 in words is "eight billion, one hundred forty-four million, nine hundred ninety thousand, five hundred ninety-three".

Divisors: 1 6619 1230547 8144990593