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1388041 is a prime number
BaseRepresentation
bin101010010111000001001
32121112000221
411102320021
5323404131
645430041
714540524
oct5227011
92545027
101388041
11868946
1256b321
13397a35
14281bbb
151c6411
hex152e09

1388041 has 2 divisors, whose sum is σ = 1388042. Its totient is φ = 1388040.

The previous prime is 1388029. The next prime is 1388053. The reversal of 1388041 is 1408831.

It is a balanced prime because it is at equal distance from previous prime (1388029) and next prime (1388053).

It can be written as a sum of positive squares in only one way, i.e., 802816 + 585225 = 896^2 + 765^2 .

It is a cyclic number.

It is not a de Polignac number, because 1388041 - 27 = 1387913 is a prime.

1388041 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1387997 and 1388015.

It is not a weakly prime, because it can be changed into another prime (1388011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694020 + 694021.

It is an arithmetic number, because the mean of its divisors is an integer number (694021).

21388041 is an apocalyptic number.

It is an amenable number.

1388041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1388041 is an equidigital number, since it uses as much as digits as its factorization.

1388041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 1388041 is about 1178.1515182692. The cubic root of 1388041 is about 111.5494495349.

The spelling of 1388041 in words is "one million, three hundred eighty-eight thousand, forty-one".