Search a number
-
+
1481213 = 7012113
BaseRepresentation
bin101101001100111111101
32210020211202
411221213331
5334344323
651425245
715406256
oct5514775
92706752
101481213
11921948
125b5225
133cb276
142a7b2d
151e3d28
hex1699fd

1481213 has 4 divisors (see below), whose sum is σ = 1484028. Its totient is φ = 1478400.

The previous prime is 1481197. The next prime is 1481219. The reversal of 1481213 is 3121841.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 487204 + 994009 = 698^2 + 997^2 .

It is a cyclic number.

It is not a de Polignac number, because 1481213 - 24 = 1481197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1481219) 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, 356 + ... + 1757.

It is an arithmetic number, because the mean of its divisors is an integer number (371007).

21481213 is an apocalyptic number.

It is an amenable number.

1481213 is a deficient number, since it is larger than the sum of its proper divisors (2815).

1481213 is an equidigital number, since it uses as much as digits as its factorization.

1481213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2814.

The product of its digits is 192, while the sum is 20.

The square root of 1481213 is about 1217.0509438803. The cubic root of 1481213 is about 113.9915095759.

The spelling of 1481213 in words is "one million, four hundred eighty-one thousand, two hundred thirteen".

Divisors: 1 701 2113 1481213