Search a number
-
+
1300961 = 1319931
BaseRepresentation
bin100111101100111100001
32110002120202
410331213201
5313112321
643514545
714025614
oct4754741
92402522
101300961
11809482
12528a55
133671cc
1425c17b
151aa70b
hex13d9e1

1300961 has 4 divisors (see below), whose sum is σ = 1311024. Its totient is φ = 1290900.

The previous prime is 1300931. The next prime is 1300963. The reversal of 1300961 is 1690031.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1300961 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1300963) 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, 4835 + ... + 5096.

It is an arithmetic number, because the mean of its divisors is an integer number (327756).

21300961 is an apocalyptic number.

It is an amenable number.

1300961 is a deficient number, since it is larger than the sum of its proper divisors (10063).

1300961 is an equidigital number, since it uses as much as digits as its factorization.

1300961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10062.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 1300961 is about 1140.5967736234. The cubic root of 1300961 is about 109.1661747221.

Adding to 1300961 its reverse (1690031), we get a palindrome (2990992).

The spelling of 1300961 in words is "one million, three hundred thousand, nine hundred sixty-one".

Divisors: 1 131 9931 1300961