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1331331113 = 7379501821
BaseRepresentation
bin100111101011010…
…1000000000101001
310102210010121221202
41033112220000221
510211310043423
6340035013545
744664061550
oct11726500051
93383117852
101331331113
11623557852
12311a3a2b5
13182a87ab8
14c8b58d97
157bd2d728
hex4f5a8029

1331331113 has 8 divisors (see below), whose sum is σ = 1525538880. Its totient is φ = 1138127760.

The previous prime is 1331331107. The next prime is 1331331139. The reversal of 1331331113 is 3111331331.

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

It is not a de Polignac number, because 1331331113 - 210 = 1331330089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1331331143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248258 + ... + 253563.

It is an arithmetic number, because the mean of its divisors is an integer number (190692360).

Almost surely, 21331331113 is an apocalyptic number.

It is an amenable number.

1331331113 is a deficient number, since it is larger than the sum of its proper divisors (194207767).

1331331113 is an equidigital number, since it uses as much as digits as its factorization.

1331331113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502207.

The product of its digits is 243, while the sum is 20.

The square root of 1331331113 is about 36487.4103356212. The cubic root of 1331331113 is about 1100.0912081396.

Adding to 1331331113 its reverse (3111331331), we get a palindrome (4442662444).

The spelling of 1331331113 in words is "one billion, three hundred thirty-one million, three hundred thirty-one thousand, one hundred thirteen".

Divisors: 1 7 379 2653 501821 3512747 190190159 1331331113