Search a number
-
+
1315130015 = 5863304781
BaseRepresentation
bin100111001100011…
…0100101010011111
310101122122112020002
41032120310222133
510143133130030
6334255444515
744406264203
oct11630645237
93348575202
101315130015
116153a1711
1230852673b
1317c604854
14c693cb03
157a6cd245
hex4e634a9f

1315130015 has 8 divisors (see below), whose sum is σ = 1579989888. Its totient is φ = 1050881440.

The previous prime is 1315130009. The next prime is 1315130021. The reversal of 1315130015 is 5100315131.

It is an interprime number because it is at equal distance from previous prime (1315130009) and next prime (1315130021).

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

It is a de Polignac number, because none of the positive numbers 2k-1315130015 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 148076 + ... + 156705.

It is an arithmetic number, because the mean of its divisors is an integer number (197498736).

Almost surely, 21315130015 is an apocalyptic number.

1315130015 is a deficient number, since it is larger than the sum of its proper divisors (264859873).

1315130015 is an equidigital number, since it uses as much as digits as its factorization.

1315130015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305649.

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 1315130015 is about 36264.7213556095. The cubic root of 1315130015 is about 1095.6106113918.

Adding to 1315130015 its reverse (5100315131), we get a palindrome (6415445146).

The spelling of 1315130015 in words is "one billion, three hundred fifteen million, one hundred thirty thousand, fifteen".

Divisors: 1 5 863 4315 304781 1523905 263026003 1315130015