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1300001 = 6719403
BaseRepresentation
bin100111101011000100001
32110001021012
410331120201
5313100001
643510305
714023043
oct4753041
92401235
101300001
1180878a
12528395
13366941
1425ba93
151aa2bb
hex13d621

1300001 has 4 divisors (see below), whose sum is σ = 1319472. Its totient is φ = 1280532.

The previous prime is 1299989. The next prime is 1300021. The reversal of 1300001 is 1000031.

Adding to 1300001 its reverse (1000031), we get a palindrome (2300032).

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: 1000031 = 4124391.

It is a cyclic number.

It is not a de Polignac number, because 1300001 - 218 = 1037857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1300021) 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, 9635 + ... + 9768.

It is an arithmetic number, because the mean of its divisors is an integer number (329868).

21300001 is an apocalyptic number.

It is an amenable number.

1300001 is a deficient number, since it is larger than the sum of its proper divisors (19471).

1300001 is an equidigital number, since it uses as much as digits as its factorization.

1300001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19470.

The product of its (nonzero) digits is 3, while the sum is 5.

The square root of 1300001 is about 1140.1758636281. The cubic root of 1300001 is about 109.1393162905.

The spelling of 1300001 in words is "one million, three hundred thousand, one".

Divisors: 1 67 19403 1300001