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1369128 = 23357047
BaseRepresentation
bin101001110010000101000
32120120002110
411032100220
5322303003
645202320
714431425
oct5162050
92516073
101369128
11855712
125603a0
1338c247
14278d4c
151c0a03
hex14e428

1369128 has 16 divisors (see below), whose sum is σ = 3422880. Its totient is φ = 456368.

The previous prime is 1369103. The next prime is 1369133. The reversal of 1369128 is 8219631.

It is a super-2 number, since 2×13691282 = 3749022960768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1369095 and 1369104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28500 + ... + 28547.

It is an arithmetic number, because the mean of its divisors is an integer number (213930).

21369128 is an apocalyptic number.

It is an amenable number.

1369128 is an abundant number, since it is smaller than the sum of its proper divisors (2053752).

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

1369128 is a wasteful number, since it uses less digits than its factorization.

1369128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57056 (or 57052 counting only the distinct ones).

The product of its digits is 2592, while the sum is 30.

The square root of 1369128 is about 1170.0974318406. The cubic root of 1369128 is about 111.0404851914.

The spelling of 1369128 in words is "one million, three hundred sixty-nine thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 24 57047 114094 171141 228188 342282 456376 684564 1369128