Base | Representation |
---|---|
bin | 111001011110… |
… | …0111110000001 |
3 | 2002200222021110 |
4 | 1302330332001 |
5 | 30203243040 |
6 | 2553513533 |
7 | 514064436 |
oct | 162747601 |
9 | 62628243 |
10 | 30134145 |
11 | 16012258 |
12 | a1128a9 |
13 | 6321072 |
14 | 4005b8d |
15 | 29a3980 |
hex | 1cbcf81 |
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".
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