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6341428581 = 319113984541
BaseRepresentation
bin1011110011111101…
…01000010101100101
3121100221111221122020
411321332220111211
5100441401203311
62525130453353
7313101152655
oct57176502545
917327457566
106341428581
112764631174
12128b894259
137a0a40707
144422c8365
15271acbc06
hex179fa8565

6341428581 has 16 divisors (see below), whose sum is σ = 8979023040. Its totient is φ = 3969665280.

The previous prime is 6341428567. The next prime is 6341428591. The reversal of 6341428581 is 1858241436.

It is a happy number.

It is not a de Polignac number, because 6341428581 - 227 = 6207210853 is a prime.

It is a super-2 number, since 2×63414285812 = 80427432895847347122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6341428591) 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 in 15 ways as a sum of consecutive naturals, for example, 485830 + ... + 498711.

It is an arithmetic number, because the mean of its divisors is an integer number (561188940).

Almost surely, 26341428581 is an apocalyptic number.

It is an amenable number.

6341428581 is a deficient number, since it is larger than the sum of its proper divisors (2637594459).

6341428581 is a wasteful number, since it uses less digits than its factorization.

6341428581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984676.

The product of its digits is 184320, while the sum is 42.

The square root of 6341428581 is about 79633.0872250976. The cubic root of 6341428581 is about 1850.9543243780.

The spelling of 6341428581 in words is "six billion, three hundred forty-one million, four hundred twenty-eight thousand, five hundred eighty-one".

Divisors: 1 3 19 57 113 339 2147 6441 984541 2953623 18706279 56118837 111253133 333759399 2113809527 6341428581