Search a number
-
+
3042145 = 5608429
BaseRepresentation
bin1011100110101101100001
312201120001001
423212231201
51234322040
6145112001
734600141
oct13465541
95646031
103042145
111798677
121028601
138268b2
14592921
1540159a
hex2e6b61

3042145 has 4 divisors (see below), whose sum is σ = 3650580. Its totient is φ = 2433712.

The previous prime is 3042107. The next prime is 3042157. The reversal of 3042145 is 5412403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5412403 = 17093167.

It can be written as a sum of positive squares in 2 ways, for example, as 1203409 + 1838736 = 1097^2 + 1356^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3042145 is a prime.

3042145 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304210 + ... + 304219.

It is an arithmetic number, because the mean of its divisors is an integer number (912645).

Almost surely, 23042145 is an apocalyptic number.

It is an amenable number.

3042145 is a deficient number, since it is larger than the sum of its proper divisors (608435).

3042145 is an equidigital number, since it uses as much as digits as its factorization.

3042145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608434.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 3042145 is about 1744.1745898849. The cubic root of 3042145 is about 144.8971922852.

Adding to 3042145 its reverse (5412403), we get a palindrome (8454548).

The spelling of 3042145 in words is "three million, forty-two thousand, one hundred forty-five".

Divisors: 1 5 608429 3042145