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BaseRepresentation
bin100011000100011001000
32011101022022
410120203020
5243233003
640344012
712524141
oct4304310
92141268
101149128
117153a2
12475008
13313076
1421cac8
1517a738
hex1188c8

1149128 has 12 divisors (see below), whose sum is σ = 2160315. Its totient is φ = 573048.

The previous prime is 1149061. The next prime is 1149131. The reversal of 1149128 is 8219411.

1149128 = 74 + 84 + ... + 224.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 574564 + 574564 = 758^2 + 758^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=758.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1149097 and 1149106.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 2843 + ... + 3221.

21149128 is an apocalyptic number.

It is an amenable number.

1149128 is a deficient number, since it is larger than the sum of its proper divisors (1011187).

1149128 is an frugal number, since it uses more digits than its factorization.

1149128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764 (or 381 counting only the distinct ones).

The product of its digits is 576, while the sum is 26.

The square root of 1149128 is about 1071.9738802788. The cubic root of 1149128 is about 104.7424678882.

The spelling of 1149128 in words is "one million, one hundred forty-nine thousand, one hundred twenty-eight".