Base | Representation |
---|---|
bin | 111001011100… |
… | …1100011100010 |
3 | 2002200021002120 |
4 | 1302321203202 |
5 | 30202321122 |
6 | 2553325110 |
7 | 514005612 |
oct | 162714342 |
9 | 62607076 |
10 | 30120162 |
11 | 160027a6 |
12 | a106796 |
13 | 63178a7 |
14 | 4000a42 |
15 | 299e75c |
hex | 1cb98e2 |
30120162 has 16 divisors (see below), whose sum is σ = 60330720. Its totient is φ = 10024992.
The previous prime is 30120161. The next prime is 30120169. The reversal of 30120162 is 26102103.
It is not an unprimeable number, because it can be changed into a prime (30120161) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1038 + ... + 7830.
It is an arithmetic number, because the mean of its divisors is an integer number (3770670).
Almost surely, 230120162 is an apocalyptic number.
30120162 is an abundant number, since it is smaller than the sum of its proper divisors (30210558).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30120162 is a wasteful number, since it uses less digits than its factorization.
30120162 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7537.
The product of its (nonzero) digits is 72, while the sum is 15.
The square root of 30120162 is about 5488.1838526055. The cubic root of 30120162 is about 311.1375549046.
Adding to 30120162 its reverse (26102103), we get a palindrome (56222265).
The spelling of 30120162 in words is "thirty million, one hundred twenty thousand, one hundred sixty-two".
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