Search a number
-
+
3000145 = 53716217
BaseRepresentation
bin1011011100011101010001
312122102102111
423130131101
51232001040
6144145321
734333531
oct13343521
95572374
103000145
11176a065
121008241
13810745
145814c1
153e3dea
hex2dc751

3000145 has 8 divisors (see below), whose sum is σ = 3697704. Its totient is φ = 2335104.

The previous prime is 3000133. The next prime is 3000161. The reversal of 3000145 is 5410003.

It can be written as a sum of positive squares in 4 ways, for example, as 1281424 + 1718721 = 1132^2 + 1311^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3000145 - 27 = 3000017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7924 + ... + 8293.

It is an arithmetic number, because the mean of its divisors is an integer number (462213).

Almost surely, 23000145 is an apocalyptic number.

It is an amenable number.

3000145 is a deficient number, since it is larger than the sum of its proper divisors (697559).

3000145 is a wasteful number, since it uses less digits than its factorization.

3000145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16259.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 3000145 is about 1732.0926649576. The cubic root of 3000145 is about 144.2272806176.

Adding to 3000145 its reverse (5410003), we get a palindrome (8410148).

The spelling of 3000145 in words is "three million, one hundred forty-five", and thus it is an aban number.

Divisors: 1 5 37 185 16217 81085 600029 3000145