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1442311 = 13110947
BaseRepresentation
bin101100000001000000111
32201021110221
411200020013
5332123221
650525211
715154663
oct5401007
92637427
101442311
118a56a2
12596807
133b6650
142978a3
151d7541
hex160207

1442311 has 4 divisors (see below), whose sum is σ = 1553272. Its totient is φ = 1331352.

The previous prime is 1442299. The next prime is 1442317. The reversal of 1442311 is 1132441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1132441 = 1577213.

It is a cyclic number.

It is not a de Polignac number, because 1442311 - 25 = 1442279 is a prime.

It is a super-2 number, since 2×14423112 = 4160522041442, which contains 22 as substring.

It is a Duffinian number.

1442311 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442317) 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, 55461 + ... + 55486.

It is an arithmetic number, because the mean of its divisors is an integer number (388318).

21442311 is an apocalyptic number.

1442311 is a deficient number, since it is larger than the sum of its proper divisors (110961).

1442311 is a wasteful number, since it uses less digits than its factorization.

1442311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110960.

The product of its digits is 96, while the sum is 16.

The square root of 1442311 is about 1200.9625306395. The cubic root of 1442311 is about 112.9847004634.

Adding to 1442311 its reverse (1132441), we get a palindrome (2574752).

The spelling of 1442311 in words is "one million, four hundred forty-two thousand, three hundred eleven".

Divisors: 1 13 110947 1442311