Search a number
-
+
1330929 = 32147881
BaseRepresentation
bin101000100111011110001
32111121200200
411010323301
5320042204
644305413
714212155
oct5047361
92447620
101330929
11829a46
12542269
13377a42
14269065
151b4539
hex144ef1

1330929 has 6 divisors (see below), whose sum is σ = 1922466. Its totient is φ = 887280.

The previous prime is 1330909. The next prime is 1330933. The reversal of 1330929 is 9290331.

It can be written as a sum of positive squares in only one way, i.e., 1299600 + 31329 = 1140^2 + 177^2 .

It is not a de Polignac number, because 1330929 - 215 = 1298161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1330909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73932 + ... + 73949.

It is an arithmetic number, because the mean of its divisors is an integer number (320411).

21330929 is an apocalyptic number.

It is an amenable number.

1330929 is a deficient number, since it is larger than the sum of its proper divisors (591537).

1330929 is a wasteful number, since it uses less digits than its factorization.

1330929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147887 (or 147884 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 1330929 is about 1153.6589617387. The cubic root of 1330929 is about 109.9980440424.

The spelling of 1330929 in words is "one million, three hundred thirty thousand, nine hundred twenty-nine".

Divisors: 1 3 9 147881 443643 1330929