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3143825 = 52125753
BaseRepresentation
bin1011111111100010010001
312220201111222
423333202101
51301100300
6151214425
735502446
oct13774221
95821458
103143825
111858003
121077415
13860c69
145bb9cd
15421785
hex2ff891

3143825 has 6 divisors (see below), whose sum is σ = 3898374. Its totient is φ = 2515040.

The previous prime is 3143813. The next prime is 3143851. The reversal of 3143825 is 5283413.

It can be written as a sum of positive squares in 3 ways, for example, as 781456 + 2362369 = 884^2 + 1537^2 .

It is not a de Polignac number, because 3143825 - 26 = 3143761 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3143794 and 3143803.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62852 + ... + 62901.

It is an arithmetic number, because the mean of its divisors is an integer number (649729).

Almost surely, 23143825 is an apocalyptic number.

It is an amenable number.

3143825 is a deficient number, since it is larger than the sum of its proper divisors (754549).

3143825 is a wasteful number, since it uses less digits than its factorization.

3143825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125763 (or 125758 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 3143825 is about 1773.0834723724. The cubic root of 3143825 is about 146.4938707652.

The spelling of 3143825 in words is "three million, one hundred forty-three thousand, eight hundred twenty-five".

Divisors: 1 5 25 125753 628765 3143825