Search a number
1373421189 = 3765401009
BaseRepresentation
bin101000111011100…
…1011111010000101
310112201100000200110
41101313023322011
510303043434224
6344141103233
746014613260
oct12167137205
93481300613
101373421189
11645295738
12323b57b19
1318b703a7a
14d0593cd7
1580894929
hex51dcbe85

1373421189 has 8 divisors (see below), whose sum is σ = 2092832320. Its totient is φ = 784812096.

The previous prime is 1373421187. The next prime is 1373421209. The reversal of 1373421189 is 9811243731.

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

It is not a de Polignac number, because 1373421189 - 21 = 1373421187 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 (1373421187) by changing a digit.

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, 32700484 + ... + 32700525.

It is an arithmetic number, because the mean of its divisors is an integer number (261604040).

Almost surely, 21373421189 is an apocalyptic number.

It is an amenable number.

1373421189 is a deficient number, since it is larger than the sum of its proper divisors (719411131).

1373421189 is an equidigital number, since it uses as much as digits as its factorization.

1373421189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65401019.

The product of its digits is 36288, while the sum is 39.

The square root of 1373421189 is about 37059.6976377304. The cubic root of 1373421189 is about 1111.5642769223.

The spelling of 1373421189 in words is "one billion, three hundred seventy-three million, four hundred twenty-one thousand, one hundred eighty-nine".