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1442131 = 2276353
BaseRepresentation
bin101100000000101010011
32201021020021
411200011103
5332122011
650524311
715154315
oct5400523
92637207
101442131
118a5549
12596697
133b6542
142977b5
151d7471
hex160153

1442131 has 4 divisors (see below), whose sum is σ = 1448712. Its totient is φ = 1435552.

The previous prime is 1442087. The next prime is 1442143. The reversal of 1442131 is 1312441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1312441 = 13100957.

It is a cyclic number.

It is not a de Polignac number, because 1442131 - 27 = 1442003 is a prime.

It is a super-2 number, since 2×14421312 = 4159483642322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1442191) 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, 2950 + ... + 3403.

It is an arithmetic number, because the mean of its divisors is an integer number (362178).

21442131 is an apocalyptic number.

1442131 is a deficient number, since it is larger than the sum of its proper divisors (6581).

1442131 is an equidigital number, since it uses as much as digits as its factorization.

1442131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6580.

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

The square root of 1442131 is about 1200.8875884112. The cubic root of 1442131 is about 112.9800001151.

Adding to 1442131 its reverse (1312441), we get a palindrome (2754572).

The spelling of 1442131 in words is "one million, four hundred forty-two thousand, one hundred thirty-one".

Divisors: 1 227 6353 1442131