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1315431341 = 7238170381
BaseRepresentation
bin100111001100111…
…1110001110101101
310101200012211120022
41032121332032231
510143222300331
6334310131525
744411660540
oct11631761655
93350184508
101315431341
11615588044
12308650ba5
1317c6aba53
14c69ba857
157a73c67b
hex4e67e3ad

1315431341 has 8 divisors (see below), whose sum is σ = 1568713344. Its totient is φ = 1078490160.

The previous prime is 1315431319. The next prime is 1315431379. The reversal of 1315431341 is 1431345131.

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

It is a cyclic number.

It is not a de Polignac number, because 1315431341 - 210 = 1315430317 is a prime.

It is a super-2 number, since 2×13154313412 = 3460719225770116562, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1315431341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315431041) 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 7 ways as a sum of consecutive naturals, for example, 4085030 + ... + 4085351.

It is an arithmetic number, because the mean of its divisors is an integer number (196089168).

Almost surely, 21315431341 is an apocalyptic number.

It is an amenable number.

1315431341 is a deficient number, since it is larger than the sum of its proper divisors (253282003).

1315431341 is an equidigital number, since it uses as much as digits as its factorization.

1315431341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8170411.

The product of its digits is 2160, while the sum is 26.

The square root of 1315431341 is about 36268.8756511696. The cubic root of 1315431341 is about 1095.6942813836.

Adding to 1315431341 its reverse (1431345131), we get a palindrome (2746776472).

The spelling of 1315431341 in words is "one billion, three hundred fifteen million, four hundred thirty-one thousand, three hundred forty-one".

Divisors: 1 7 23 161 8170381 57192667 187918763 1315431341