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3030725 = 52121229
BaseRepresentation
bin1011100011111011000101
312200222101002
423203323011
51233440400
6144543045
734521635
oct13437305
95628332
103030725
111790035
121021a85
13821639
1458c6c5
153eced5
hex2e3ec5

3030725 has 6 divisors (see below), whose sum is σ = 3758130. Its totient is φ = 2424560.

The previous prime is 3030719. The next prime is 3030739. The reversal of 3030725 is 5270303.

It can be written as a sum of positive squares in 3 ways, for example, as 201601 + 2829124 = 449^2 + 1682^2 .

It is not a de Polignac number, because 3030725 - 26 = 3030661 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 3030697 and 3030706.

It is a congruent number.

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, 60590 + ... + 60639.

It is an arithmetic number, because the mean of its divisors is an integer number (626355).

Almost surely, 23030725 is an apocalyptic number.

It is an amenable number.

3030725 is a deficient number, since it is larger than the sum of its proper divisors (727405).

3030725 is a wasteful number, since it uses less digits than its factorization.

3030725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121239 (or 121234 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 20.

The square root of 3030725 is about 1740.8977569059. The cubic root of 3030725 is about 144.7156536186.

The spelling of 3030725 in words is "three million, thirty thousand, seven hundred twenty-five".

Divisors: 1 5 25 121229 606145 3030725