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1317052267 = 3142485557
BaseRepresentation
bin100111010000000…
…1001111101101011
310101210021012001121
41032200021331223
510144131133032
6334405000111
744431521346
oct11640117553
93353235047
101317052267
11616494953
123090b3037
1317cb2878b
14c6cbd45d
157a95ca97
hex4e809f6b

1317052267 has 4 divisors (see below), whose sum is σ = 1359537856. Its totient is φ = 1274566680.

The previous prime is 1317052229. The next prime is 1317052277. The reversal of 1317052267 is 7622507131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7622507131 = 8399085229.

It is a cyclic number.

It is not a de Polignac number, because 1317052267 - 223 = 1308663659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1317052207) 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, 21242748 + ... + 21242809.

It is an arithmetic number, because the mean of its divisors is an integer number (339884464).

Almost surely, 21317052267 is an apocalyptic number.

1317052267 is a deficient number, since it is larger than the sum of its proper divisors (42485589).

1317052267 is an equidigital number, since it uses as much as digits as its factorization.

1317052267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42485588.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 1317052267 is about 36291.2147358007. The cubic root of 1317052267 is about 1096.1441491166.

Adding to 1317052267 its reverse (7622507131), we get a palindrome (8939559398).

The spelling of 1317052267 in words is "one billion, three hundred seventeen million, fifty-two thousand, two hundred sixty-seven".

Divisors: 1 31 42485557 1317052267