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2988271871 = 13229867067
BaseRepresentation
bin1011001000011101…
…0110100011111111
321201020221221100222
42302013112203333
522104444144441
61212305011555
7134023614614
oct26207264377
97636857328
102988271871
1112a388a982
126b4923bbb
13388139210
14204c3250b
15127528d4b
hexb21d68ff

2988271871 has 4 divisors (see below), whose sum is σ = 3218138952. Its totient is φ = 2758404792.

The previous prime is 2988271861. The next prime is 2988271879. The reversal of 2988271871 is 1781728892.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2k-2988271871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2988271879) 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 3 ways as a sum of consecutive naturals, for example, 114933521 + ... + 114933546.

It is an arithmetic number, because the mean of its divisors is an integer number (804534738).

Almost surely, 22988271871 is an apocalyptic number.

2988271871 is a deficient number, since it is larger than the sum of its proper divisors (229867081).

2988271871 is a wasteful number, since it uses less digits than its factorization.

2988271871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229867080.

The product of its digits is 903168, while the sum is 53.

The square root of 2988271871 is about 54665.0882282284. The cubic root of 2988271871 is about 1440.3676837262.

The spelling of 2988271871 in words is "two billion, nine hundred eighty-eight million, two hundred seventy-one thousand, eight hundred seventy-one".

Divisors: 1 13 229867067 2988271871