Search a number
-
+
30134145 = 358232441
BaseRepresentation
bin111001011110…
…0111110000001
32002200222021110
41302330332001
530203243040
62553513533
7514064436
oct162747601
962628243
1030134145
1116012258
12a1128a9
136321072
144005b8d
1529a3980
hex1cbcf81

30134145 has 16 divisors (see below), whose sum is σ = 48292992. Its totient is φ = 16045440.

The previous prime is 30134129. The next prime is 30134177. The reversal of 30134145 is 54143103.

It is not a de Polignac number, because 30134145 - 24 = 30134129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11125 + ... + 13565.

It is an arithmetic number, because the mean of its divisors is an integer number (3018312).

Almost surely, 230134145 is an apocalyptic number.

It is an amenable number.

30134145 is a deficient number, since it is larger than the sum of its proper divisors (18158847).

30134145 is a wasteful number, since it uses less digits than its factorization.

30134145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3272.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 30134145 is about 5489.4576234816. The cubic root of 30134145 is about 311.1856950104.

Adding to 30134145 its reverse (54143103), we get a palindrome (84277248).

The spelling of 30134145 in words is "thirty million, one hundred thirty-four thousand, one hundred forty-five".

Divisors: 1 3 5 15 823 2441 2469 4115 7323 12205 12345 36615 2008943 6026829 10044715 30134145