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1231341713 = 7175905959
BaseRepresentation
bin100100101100100…
…1100100010010001
310011210222122021122
41021121030202101
510010210413323
6322103532025
742341142350
oct11131144221
93153878248
101231341713
11582073288
122a445a015
13168149084
14b976b997
157317bec8
hex4964c891

1231341713 has 4 divisors (see below), whose sum is σ = 1407247680. Its totient is φ = 1055435748.

The previous prime is 1231341707. The next prime is 1231341743. The reversal of 1231341713 is 3171431321.

It is a happy number.

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: 3171431321 = 9193450959.

It is a cyclic number.

It is not a de Polignac number, because 1231341713 - 26 = 1231341649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231341743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87952973 + ... + 87952986.

It is an arithmetic number, because the mean of its divisors is an integer number (351811920).

Almost surely, 21231341713 is an apocalyptic number.

It is an amenable number.

1231341713 is a deficient number, since it is larger than the sum of its proper divisors (175905967).

1231341713 is an equidigital number, since it uses as much as digits as its factorization.

1231341713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175905966.

The product of its digits is 1512, while the sum is 26.

The square root of 1231341713 is about 35090.4789508493. The cubic root of 1231341713 is about 1071.8307125868.

The spelling of 1231341713 in words is "one billion, two hundred thirty-one million, three hundred forty-one thousand, seven hundred thirteen".

Divisors: 1 7 175905959 1231341713