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1311430301 = 2634986427
BaseRepresentation
bin100111000101010…
…1101011010011101
310101101200120011122
41032022231122131
510141211232201
6334044300325
744332654646
oct11612553235
93341616148
101311430301
116132a4aa5
123072416a5
1317b90a87c
14c62586cd
157a1ebe1b
hex4e2ad69d

1311430301 has 4 divisors (see below), whose sum is σ = 1316416992. Its totient is φ = 1306443612.

The previous prime is 1311430283. The next prime is 1311430313. The reversal of 1311430301 is 1030341131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1030341131 = 5917463409.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1311430301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1311430301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311430361) 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 3 ways as a sum of consecutive naturals, for example, 2492951 + ... + 2493476.

It is an arithmetic number, because the mean of its divisors is an integer number (329104248).

Almost surely, 21311430301 is an apocalyptic number.

It is an amenable number.

1311430301 is a deficient number, since it is larger than the sum of its proper divisors (4986691).

1311430301 is an equidigital number, since it uses as much as digits as its factorization.

1311430301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4986690.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1311430301 is about 36213.6756074276. The cubic root of 1311430301 is about 1094.5822585891.

Adding to 1311430301 its reverse (1030341131), we get a palindrome (2341771432).

The spelling of 1311430301 in words is "one billion, three hundred eleven million, four hundred thirty thousand, three hundred one".

Divisors: 1 263 4986427 1311430301