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1442213 = 3146523
BaseRepresentation
bin101100000000110100101
32201021100022
411200012211
5332122323
650524525
715154463
oct5400645
92637308
101442213
118a5613
12596745
133b65a6
14297833
151d74c8
hex1601a5

1442213 has 4 divisors (see below), whose sum is σ = 1488768. Its totient is φ = 1395660.

The previous prime is 1442209. The next prime is 1442227. The reversal of 1442213 is 3122441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1442213 - 22 = 1442209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1442191 and 1442200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442513) 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, 23231 + ... + 23292.

It is an arithmetic number, because the mean of its divisors is an integer number (372192).

21442213 is an apocalyptic number.

It is an amenable number.

1442213 is a deficient number, since it is larger than the sum of its proper divisors (46555).

1442213 is an equidigital number, since it uses as much as digits as its factorization.

1442213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46554.

The product of its digits is 192, while the sum is 17.

The square root of 1442213 is about 1200.9217293396. The cubic root of 1442213 is about 112.9821414334.

Adding to 1442213 its reverse (3122441), we get a palindrome (4564654).

The spelling of 1442213 in words is "one million, four hundred forty-two thousand, two hundred thirteen".

Divisors: 1 31 46523 1442213