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1020028 = 22255007
BaseRepresentation
bin11111001000001111100
31220211012211
43321001330
5230120103
633510204
711445562
oct3710174
91824184
101020028
116373a9
12412364
13299389
141c7a32
1515236d
hexf907c

1020028 has 6 divisors (see below), whose sum is σ = 1785056. Its totient is φ = 510012.

The previous prime is 1020023. The next prime is 1020037. The reversal of 1020028 is 8200201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127500 + ... + 127507.

21020028 is an apocalyptic number.

It is an amenable number.

1020028 is a deficient number, since it is larger than the sum of its proper divisors (765028).

1020028 is a wasteful number, since it uses less digits than its factorization.

1020028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255011 (or 255009 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1020028 is about 1009.9643558067. The cubic root of 1020028 is about 100.6631920403.

Adding to 1020028 its reverse (8200201), we get a palindrome (9220229).

The spelling of 1020028 in words is "one million, twenty thousand, twenty-eight".

Divisors: 1 2 4 255007 510014 1020028