Search a number
-
+
1317884053 = 2986344131
BaseRepresentation
bin100111010001101…
…0101000010010101
310101211211110001111
41032203111002111
510144334242203
6334434455021
744441554363
oct11643250225
93354743044
101317884053
11616a02882
12309434471
1318005a265
14c7058633
157aa7426d
hex4e8d5095

1317884053 has 4 divisors (see below), whose sum is σ = 1317958048. Its totient is φ = 1317810060.

The previous prime is 1317884041. The next prime is 1317884063. The reversal of 1317884053 is 3504887131.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3504887131 = 23152386397.

It is a cyclic number.

It is not a de Polignac number, because 1317884053 - 25 = 1317884021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1317883997 and 1317884015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317884063) 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, 7798 + ... + 51928.

It is an arithmetic number, because the mean of its divisors is an integer number (329489512).

Almost surely, 21317884053 is an apocalyptic number.

It is an amenable number.

1317884053 is a deficient number, since it is larger than the sum of its proper divisors (73995).

1317884053 is an equidigital number, since it uses as much as digits as its factorization.

1317884053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73994.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 1317884053 is about 36302.6728079352. The cubic root of 1317884053 is about 1096.3748576230.

The spelling of 1317884053 in words is "one billion, three hundred seventeen million, eight hundred eighty-four thousand, fifty-three".

Divisors: 1 29863 44131 1317884053