Search a number
-
+
30145163 = 613311493
BaseRepresentation
bin111001011111…
…1101010001011
32002201112101112
41302333222023
530204121123
62554040535
7514141526
oct162775213
962645345
1030145163
111601a564
12a11914b
136326099
144009bbd
1529a6d78
hex1cbfa8b

30145163 has 8 divisors (see below), whose sum is σ = 30752496. Its totient is φ = 29541600.

The previous prime is 30145151. The next prime is 30145169. The reversal of 30145163 is 36154103.

It is a happy number.

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 30145163 - 24 = 30145147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30145169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19445 + ... + 20937.

It is an arithmetic number, because the mean of its divisors is an integer number (3844062).

Almost surely, 230145163 is an apocalyptic number.

30145163 is a deficient number, since it is larger than the sum of its proper divisors (607333).

30145163 is a wasteful number, since it uses less digits than its factorization.

30145163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1885.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 30145163 is about 5490.4610917481. The cubic root of 30145163 is about 311.2236168451.

Adding to 30145163 its reverse (36154103), we get a palindrome (66299266).

The spelling of 30145163 in words is "thirty million, one hundred forty-five thousand, one hundred sixty-three".

Divisors: 1 61 331 1493 20191 91073 494183 30145163