Search a number
-
+
1490007 = 3496669
BaseRepresentation
bin101101011110001010111
32210200220110
411223301113
5340140012
651534103
715444021
oct5536127
92720813
101490007
11928512
125ba333
1340227c
142ab011
151e673c
hex16bc57

1490007 has 4 divisors (see below), whose sum is σ = 1986680. Its totient is φ = 993336.

The previous prime is 1489997. The next prime is 1490011. The reversal of 1490007 is 7000941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7000941 = 32333647.

It is not a de Polignac number, because 1490007 - 28 = 1489751 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248332 + ... + 248337.

It is an arithmetic number, because the mean of its divisors is an integer number (496670).

21490007 is an apocalyptic number.

1490007 is a deficient number, since it is larger than the sum of its proper divisors (496673).

1490007 is an equidigital number, since it uses as much as digits as its factorization.

1490007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496672.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 1490007 is about 1220.6584288817. The cubic root of 1490007 is about 114.2166547807.

Adding to 1490007 its reverse (7000941), we get a palindrome (8490948).

The spelling of 1490007 in words is "one million, four hundred ninety thousand, seven".

Divisors: 1 3 496669 1490007