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1442028 = 223717167
BaseRepresentation
bin101100000000011101100
32201021002110
411200003230
5332121103
650524020
715154110
oct5400354
92637073
101442028
118a5465
12596610
133b6493
14297740
151d7403
hex1600ec

1442028 has 24 divisors (see below), whose sum is σ = 3845632. Its totient is φ = 411984.

The previous prime is 1442017. The next prime is 1442053. The reversal of 1442028 is 8202441.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1441995 and 1442013.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8500 + ... + 8667.

21442028 is an apocalyptic number.

It is an amenable number.

1442028 is an abundant number, since it is smaller than the sum of its proper divisors (2403604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1442028 is a wasteful number, since it uses less digits than its factorization.

1442028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17181 (or 17179 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1442028 is about 1200.8447026989. The cubic root of 1442028 is about 112.9773102954.

Adding to 1442028 its reverse (8202441), we get a palindrome (9644469).

The spelling of 1442028 in words is "one million, four hundred forty-two thousand, twenty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 17167 34334 51501 68668 103002 120169 206004 240338 360507 480676 721014 1442028