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3145025 = 52139677
BaseRepresentation
bin1011111111110101000001
312220210011102
423333311001
51301120100
6151224145
735506112
oct13776501
95823142
103145025
1118589a4
121078055
13861680
145bc209
15421cd5
hex2ffd41

3145025 has 12 divisors (see below), whose sum is σ = 4200252. Its totient is φ = 2322240.

The previous prime is 3145019. The next prime is 3145027. The reversal of 3145025 is 5205413.

It can be written as a sum of positive squares in 6 ways, for example, as 183184 + 2961841 = 428^2 + 1721^2 .

It is not a de Polignac number, because 3145025 - 26 = 3144961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3144988 and 3145006.

It is not an unprimeable number, because it can be changed into a prime (3145027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4514 + ... + 5163.

It is an arithmetic number, because the mean of its divisors is an integer number (350021).

Almost surely, 23145025 is an apocalyptic number.

It is an amenable number.

3145025 is a deficient number, since it is larger than the sum of its proper divisors (1055227).

3145025 is a wasteful number, since it uses less digits than its factorization.

3145025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9700 (or 9695 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 3145025 is about 1773.4218336312. The cubic root of 3145025 is about 146.5125073287.

The spelling of 3145025 in words is "three million, one hundred forty-five thousand, twenty-five".

Divisors: 1 5 13 25 65 325 9677 48385 125801 241925 629005 3145025