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1311330301 = 12757102793
BaseRepresentation
bin100111000101001…
…0100111111111101
310101101111110222221
41032022110333331
510141200032201
6334042205341
744332060261
oct11612247775
93341443887
101311330301
11613236956
123071b3851
1317b8a41b8
14c62300a1
157a1cc4a1
hex4e294ffd

1311330301 has 4 divisors (see below), whose sum is σ = 1311445852. Its totient is φ = 1311214752.

The previous prime is 1311330271. The next prime is 1311330331. The reversal of 1311330301 is 1030331131.

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

It is an interprime number because it is at equal distance from previous prime (1311330271) and next prime (1311330331).

It can be written as a sum of positive squares in 2 ways, for example, as 1006792900 + 304537401 = 31730^2 + 17451^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1311330301 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 (1311330331) 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, 38640 + ... + 64153.

It is an arithmetic number, because the mean of its divisors is an integer number (327861463).

Almost surely, 21311330301 is an apocalyptic number.

It is an amenable number.

1311330301 is a deficient number, since it is larger than the sum of its proper divisors (115551).

1311330301 is a wasteful number, since it uses less digits than its factorization.

1311330301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115550.

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 1311330301 is about 36212.2948872341. The cubic root of 1311330301 is about 1094.5544362926.

Adding to 1311330301 its reverse (1030331131), we get a palindrome (2341661432).

The spelling of 1311330301 in words is "one billion, three hundred eleven million, three hundred thirty thousand, three hundred one".

Divisors: 1 12757 102793 1311330301