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1408025 = 52173313
BaseRepresentation
bin101010111110000011001
32122112110002
411113300121
5330024100
650102345
714653013
oct5276031
92575402
101408025
11881963
1257a9b5
133a3b68
142891b3
151cc2d5
hex157c19

1408025 has 12 divisors (see below), whose sum is σ = 1849212. Its totient is φ = 1059840.

The previous prime is 1408021. The next prime is 1408027. The reversal of 1408025 is 5208041.

It can be written as a sum of positive squares in 6 ways, for example, as 92416 + 1315609 = 304^2 + 1147^2 .

It is not a de Polignac number, because 1408025 - 22 = 1408021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1407988 and 1408006.

It is not an unprimeable number, because it can be changed into a prime (1408021) 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 11 ways as a sum of consecutive naturals, for example, 1232 + ... + 2081.

It is an arithmetic number, because the mean of its divisors is an integer number (154101).

21408025 is an apocalyptic number.

It is an amenable number.

1408025 is a deficient number, since it is larger than the sum of its proper divisors (441187).

1408025 is a wasteful number, since it uses less digits than its factorization.

1408025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3340 (or 3335 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1408025 is about 1186.6022922614. The cubic root of 1408025 is about 112.0822365839.

The spelling of 1408025 in words is "one million, four hundred eight thousand, twenty-five".

Divisors: 1 5 17 25 85 425 3313 16565 56321 82825 281605 1408025