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30135065 = 56027013
BaseRepresentation
bin111001011110…
…1001100011001
32002201000112112
41302331030121
530203310230
62553522105
7514100222
oct162751431
962630475
1030135065
1116012a14
12a113335
1363215cc
144006249
1529a3d95
hex1cbd319

30135065 has 4 divisors (see below), whose sum is σ = 36162084. Its totient is φ = 24108048.

The previous prime is 30135047. The next prime is 30135071. The reversal of 30135065 is 56053103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56053103 = 159735099.

It can be written as a sum of positive squares in 2 ways, for example, as 22052416 + 8082649 = 4696^2 + 2843^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30135065 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30135065.

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, 3013502 + ... + 3013511.

It is an arithmetic number, because the mean of its divisors is an integer number (9040521).

Almost surely, 230135065 is an apocalyptic number.

It is an amenable number.

30135065 is a deficient number, since it is larger than the sum of its proper divisors (6027019).

30135065 is an equidigital number, since it uses as much as digits as its factorization.

30135065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6027018.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 30135065 is about 5489.5414198273. The cubic root of 30135065 is about 311.1888618269.

Adding to 30135065 its reverse (56053103), we get a palindrome (86188168).

The spelling of 30135065 in words is "thirty million, one hundred thirty-five thousand, sixty-five".

Divisors: 1 5 6027013 30135065