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2311320013 = 71137237619
BaseRepresentation
bin1000100111000011…
…1111000111001101
312222002011012222221
42021300333013031
514213144220023
61021203335341
7111163616212
oct21160770715
95862135887
102311320013
11a86752a32
12546081551
132aab097a2
1417cd77b09
15d7daa85d
hex89c3f1cd

2311320013 has 8 divisors (see below), whose sum is σ = 2360992320. Its totient is φ = 2262123360.

The previous prime is 2311319957. The next prime is 2311320029. The reversal of 2311320013 is 3100231132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2311320013 is a prime.

It is a super-3 number, since 3×23113200133 (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311320043) 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 7 ways as a sum of consecutive naturals, for example, 109083 + ... + 128536.

It is an arithmetic number, because the mean of its divisors is an integer number (295124040).

Almost surely, 22311320013 is an apocalyptic number.

It is an amenable number.

2311320013 is a deficient number, since it is larger than the sum of its proper divisors (49672307).

2311320013 is a wasteful number, since it uses less digits than its factorization.

2311320013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237827.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2311320013 is about 48076.1896680675. The cubic root of 2311320013 is about 1322.1681564193.

Adding to 2311320013 its reverse (3100231132), we get a palindrome (5411551145).

The spelling of 2311320013 in words is "two billion, three hundred eleven million, three hundred twenty thousand, thirteen".

Divisors: 1 71 137 9727 237619 16870949 32553803 2311320013