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1319028 = 223109919
BaseRepresentation
bin101000010000001110100
32111000100220
411002001310
5314202103
644134340
714132364
oct5020164
92430326
101319028
11821007
125373b0
133724b9
142649a4
151b0c53
hex142074

1319028 has 12 divisors (see below), whose sum is σ = 3077760. Its totient is φ = 439672.

The previous prime is 1319023. The next prime is 1319033. The reversal of 1319028 is 8209131.

It is an interprime number because it is at equal distance from previous prime (1319023) and next prime (1319033).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1318989 and 1319007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1319023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54948 + ... + 54971.

It is an arithmetic number, because the mean of its divisors is an integer number (256480).

21319028 is an apocalyptic number.

It is an amenable number.

1319028 is an abundant number, since it is smaller than the sum of its proper divisors (1758732).

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

1319028 is a wasteful number, since it uses less digits than its factorization.

1319028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109926 (or 109924 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 1319028 is about 1148.4894427029. The cubic root of 1319028 is about 109.6691990230.

The spelling of 1319028 in words is "one million, three hundred nineteen thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 109919 219838 329757 439676 659514 1319028