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1315421141 = 6191123671
BaseRepresentation
bin100111001100111…
…1011101111010101
310101200012022120112
41032121323233111
510143221434031
6334310012405
744411616026
oct11631735725
93350168515
101315421141
11615580411
12308647105
1317c6a7208
14c69b6c4d
157a73962b
hex4e67bbd5

1315421141 has 8 divisors (see below), whose sum is σ = 1338509568. Its totient is φ = 1292382000.

The previous prime is 1315421131. The next prime is 1315421143. The reversal of 1315421141 is 1411245131.

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 1315421141 - 226 = 1248312277 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 (1315421143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43736 + ... + 67406.

It is an arithmetic number, because the mean of its divisors is an integer number (167313696).

Almost surely, 21315421141 is an apocalyptic number.

It is an amenable number.

1315421141 is a deficient number, since it is larger than the sum of its proper divisors (23088427).

1315421141 is an equidigital number, since it uses as much as digits as its factorization.

1315421141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24643.

The product of its digits is 480, while the sum is 23.

The square root of 1315421141 is about 36268.7350344618. The cubic root of 1315421141 is about 1095.6914493314.

Adding to 1315421141 its reverse (1411245131), we get a palindrome (2726666272).

The spelling of 1315421141 in words is "one billion, three hundred fifteen million, four hundred twenty-one thousand, one hundred forty-one".

Divisors: 1 61 911 23671 55571 1443931 21564281 1315421141