Search a number
-
+
30066065 = 56013213
BaseRepresentation
bin111001010110…
…0010110010001
32002120111212222
41302230112101
530144103230
62552230425
7513362111
oct162542621
962514788
1030066065
1115a76097
12a09b415
1362c9093
143dc9041
15298d6e5
hex1cac591

30066065 has 4 divisors (see below), whose sum is σ = 36079284. Its totient is φ = 24052848.

The previous prime is 30066061. The next prime is 30066067. The reversal of 30066065 is 56066003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4734976 + 25331089 = 2176^2 + 5033^2 .

It is a cyclic number.

It is not a de Polignac number, because 30066065 - 22 = 30066061 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30066061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3006602 + ... + 3006611.

It is an arithmetic number, because the mean of its divisors is an integer number (9019821).

Almost surely, 230066065 is an apocalyptic number.

It is an amenable number.

30066065 is a deficient number, since it is larger than the sum of its proper divisors (6013219).

30066065 is an equidigital number, since it uses as much as digits as its factorization.

30066065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6013218.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 30066065 is about 5483.2531402444. The cubic root of 30066065 is about 310.9511714989.

The spelling of 30066065 in words is "thirty million, sixty-six thousand, sixty-five".

Divisors: 1 5 6013213 30066065