Search a number
-
+
1317001 = 7188143
BaseRepresentation
bin101000001100010001001
32110220120211
411001202021
5314121001
644121121
714123440
oct5014211
92426524
101317001
1181a534
125361a1
133715ba
14263d57
151b0351
hex141889

1317001 has 4 divisors (see below), whose sum is σ = 1505152. Its totient is φ = 1128852.

The previous prime is 1316999. The next prime is 1317013. The reversal of 1317001 is 1007131.

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 an emirpimes, since its reverse is a distinct semiprime: 1007131 = 1759243.

It is a cyclic number.

It is not a de Polignac number, because 1317001 - 21 = 1316999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1317031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94065 + ... + 94078.

It is an arithmetic number, because the mean of its divisors is an integer number (376288).

21317001 is an apocalyptic number.

It is an amenable number.

1317001 is a deficient number, since it is larger than the sum of its proper divisors (188151).

1317001 is an equidigital number, since it uses as much as digits as its factorization.

1317001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188150.

The product of its (nonzero) digits is 21, while the sum is 13.

The square root of 1317001 is about 1147.6066399250. The cubic root of 1317001 is about 109.6129926256.

The spelling of 1317001 in words is "one million, three hundred seventeen thousand, one".

Divisors: 1 7 188143 1317001