Search a number
-
+
1297029 = 3432343
BaseRepresentation
bin100111100101010000101
32102220012010
410330222011
5313001104
643444433
714011266
oct4745205
92386163
101297029
11806528
12526719
13365496
1425a96d
151a9489
hex13ca85

1297029 has 4 divisors (see below), whose sum is σ = 1729376. Its totient is φ = 864684.

The previous prime is 1297027. The next prime is 1297057. The reversal of 1297029 is 9207921.

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 not a de Polignac number, because 1297029 - 21 = 1297027 is a prime.

It is a D-number.

It is a Duffinian number.

1297029 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1296987 and 1297005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297027) 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, 216169 + ... + 216174.

It is an arithmetic number, because the mean of its divisors is an integer number (432344).

21297029 is an apocalyptic number.

It is an amenable number.

1297029 is a deficient number, since it is larger than the sum of its proper divisors (432347).

1297029 is an equidigital number, since it uses as much as digits as its factorization.

1297029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432346.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 1297029 is about 1138.8718101700. The cubic root of 1297029 is about 109.0560831385.

The spelling of 1297029 in words is "one million, two hundred ninety-seven thousand, twenty-nine".

Divisors: 1 3 432343 1297029