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1283056 = 2480191
BaseRepresentation
bin100111001001111110000
32102012000121
410321033300
5312024211
643300024
713622455
oct4711760
92365017
101283056
117a6a85
1251a614
1335c008
1425582c
151a5271
hex1393f0

1283056 has 10 divisors (see below), whose sum is σ = 2485952. Its totient is φ = 641520.

The previous prime is 1283027. The next prime is 1283063. The reversal of 1283056 is 6503821.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1283056.

It is a congruent number.

It is an unprimeable number.

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, 40080 + ... + 40111.

21283056 is an apocalyptic number.

1283056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1283056 is a deficient number, since it is larger than the sum of its proper divisors (1202896).

1283056 is an equidigital number, since it uses as much as digits as its factorization.

1283056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80199 (or 80193 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1283056 is about 1132.7206186876. The cubic root of 1283056 is about 108.6630449485.

Adding to 1283056 its reverse (6503821), we get a palindrome (7786877).

The spelling of 1283056 in words is "one million, two hundred eighty-three thousand, fifty-six".

Divisors: 1 2 4 8 16 80191 160382 320764 641528 1283056