Search a number
-
+
1442897 = 1133
BaseRepresentation
bin101100000010001010001
32201022021122
411200101101
5332133042
650532025
715156461
oct5402121
92638248
101442897
118a6085
12597015
133b69b1
14297ba1
151d77d2
hex160451

1442897 has 4 divisors (see below), whose sum is σ = 1455780. Its totient is φ = 1430128.

The previous prime is 1442887. The next prime is 1442899. The reversal of 1442897 is 7982441.

The cubic root of 1442897 is 113.

It is a perfect power (a cube), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 440896 + 1002001 = 664^2 + 1001^2 .

It is not a de Polignac number, because 1442897 - 28 = 1442641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1442899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12713 + ... + 12825.

It is an arithmetic number, because the mean of its divisors is an integer number (363945).

21442897 is an apocalyptic number.

It is an amenable number.

1442897 is a deficient number, since it is larger than the sum of its proper divisors (12883).

1442897 is an frugal number, since it uses more digits than its factorization.

1442897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339 (or 113 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 1442897 is about 1201.2064768390.

The spelling of 1442897 in words is "one million, four hundred forty-two thousand, eight hundred ninety-seven".

Divisors: 1 113 12769 1442897