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1025448 = 23342727
BaseRepresentation
bin11111010010110101000
31221002122120
43322112220
5230303243
633551240
711500434
oct3722650
91832576
101025448
11640486
12415520
1329b998
141c99c4
15153c83
hexfa5a8

1025448 has 16 divisors (see below), whose sum is σ = 2563680. Its totient is φ = 341808.

The previous prime is 1025443. The next prime is 1025459. The reversal of 1025448 is 8445201.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 42727 = 1025448 / (1 + 0 + 2 + 5 + 4 + 4 + 8).

It is not an unprimeable number, because it can be changed into a prime (1025443) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 21340 + ... + 21387.

It is an arithmetic number, because the mean of its divisors is an integer number (160230).

21025448 is an apocalyptic number.

It is an amenable number.

1025448 is an abundant number, since it is smaller than the sum of its proper divisors (1538232).

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

1025448 is a wasteful number, since it uses less digits than its factorization.

1025448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42736 (or 42732 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 1025448 is about 1012.6440638250. The cubic root of 1025448 is about 100.8411711383.

The spelling of 1025448 in words is "one million, twenty-five thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 24 42727 85454 128181 170908 256362 341816 512724 1025448