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27642824672 = 25863838271
BaseRepresentation
bin11001101111101001…
…000000011111100000
32122100110211222201012
4121233221000133200
5423103030342142
620410545400052
71666005063401
oct315751003740
978313758635
1027642824672
11107a5721351
125435639028
1327b6c218b8
1414a33759a8
15abbc11882
hex66fa407e0

27642824672 has 12 divisors (see below), whose sum is σ = 54421811136. Its totient is φ = 13821412320.

The previous prime is 27642824669. The next prime is 27642824681.

27642824672 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 27642824672.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 431919104 + ... + 431919167.

It is an arithmetic number, because the mean of its divisors is an integer number (4535150928).

Almost surely, 227642824672 is an apocalyptic number.

It is an amenable number.

27642824672 is a deficient number, since it is larger than the sum of its proper divisors (26778986464).

27642824672 is an equidigital number, since it uses as much as digits as its factorization.

27642824672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863838281 (or 863838273 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 50.

The spelling of 27642824672 in words is "twenty-seven billion, six hundred forty-two million, eight hundred twenty-four thousand, six hundred seventy-two".

Divisors: 1 2 4 8 16 32 863838271 1727676542 3455353084 6910706168 13821412336 27642824672