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1282028 = 221129137
BaseRepresentation
bin100111000111111101100
32102010121112
410320333230
5312011103
643251152
713616456
oct4707754
92363545
101282028
117a6230
12519ab8
1335b6c7
142552d6
151a4cd8
hex138fec

1282028 has 12 divisors (see below), whose sum is σ = 2447592. Its totient is φ = 582720.

The previous prime is 1282009. The next prime is 1282031. The reversal of 1282028 is 8202821.

It is a junction number, because it is equal to n+sod(n) for n = 1281994 and 1282012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14525 + ... + 14612.

It is an arithmetic number, because the mean of its divisors is an integer number (203966).

21282028 is an apocalyptic number.

It is an amenable number.

1282028 is a deficient number, since it is larger than the sum of its proper divisors (1165564).

1282028 is a wasteful number, since it uses less digits than its factorization.

1282028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29152 (or 29150 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 1282028 is about 1132.2667530224. The cubic root of 1282028 is about 108.6340164788.

Adding to 1282028 its reverse (8202821), we get a palindrome (9484849).

The spelling of 1282028 in words is "one million, two hundred eighty-two thousand, twenty-eight".

Divisors: 1 2 4 11 22 44 29137 58274 116548 320507 641014 1282028