Search a number
-
+
1490279 = 7212897
BaseRepresentation
bin101101011110101100111
32210201021112
411223311213
5340142104
651535235
715444560
oct5536547
92721245
101490279
1192873a
125ba51b
1340242b
142ab167
151e686e
hex16bd67

1490279 has 4 divisors (see below), whose sum is σ = 1703184. Its totient is φ = 1277376.

The previous prime is 1490273. The next prime is 1490287. The reversal of 1490279 is 9720941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9720941 = 10219521.

It is a cyclic number.

It is not a de Polignac number, because 1490279 - 212 = 1486183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490273) 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, 106442 + ... + 106455.

It is an arithmetic number, because the mean of its divisors is an integer number (425796).

21490279 is an apocalyptic number.

1490279 is a deficient number, since it is larger than the sum of its proper divisors (212905).

1490279 is an equidigital number, since it uses as much as digits as its factorization.

1490279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212904.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 1490279 is about 1220.7698390770. The cubic root of 1490279 is about 114.2236044214.

The spelling of 1490279 in words is "one million, four hundred ninety thousand, two hundred seventy-nine".

Divisors: 1 7 212897 1490279