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1248328 = 23156041
BaseRepresentation
bin100110000110001001000
32100102101101
410300301020
5304421303
642431144
713416304
oct4606110
92312341
101248328
11782984
125024b4
13349273
14246d04
15199d1d
hex130c48

1248328 has 8 divisors (see below), whose sum is σ = 2340630. Its totient is φ = 624160.

The previous prime is 1248323. The next prime is 1248329. The reversal of 1248328 is 8238421.

It can be written as a sum of positive squares in only one way, i.e., 636804 + 611524 = 798^2 + 782^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1248296 and 1248305.

It is not an unprimeable number, because it can be changed into a prime (1248323) 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 as a sum of consecutive naturals, namely, 78013 + ... + 78028.

21248328 is an apocalyptic number.

It is an amenable number.

1248328 is a deficient number, since it is larger than the sum of its proper divisors (1092302).

1248328 is a wasteful number, since it uses less digits than its factorization.

1248328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156047 (or 156043 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 1248328 is about 1117.2859974062. The cubic root of 1248328 is about 107.6736835402.

The spelling of 1248328 in words is "one million, two hundred forty-eight thousand, three hundred twenty-eight".

Divisors: 1 2 4 8 156041 312082 624164 1248328