Base | Representation |
---|---|
bin | 111001011010… |
… | …1101001100001 |
3 | 2002122110010221 |
4 | 1302311221201 |
5 | 30201313121 |
6 | 2553123041 |
7 | 513611143 |
oct | 162655141 |
9 | 62573127 |
10 | 30104161 |
11 | 15aa177a |
12 | a0b9481 |
13 | 6310519 |
14 | 3dd8c93 |
15 | 2999b41 |
hex | 1cb5a61 |
30104161 has 16 divisors (see below), whose sum is σ = 32717520. Its totient is φ = 27596800.
The previous prime is 30104153. The next prime is 30104167. The reversal of 30104161 is 16140103.
It can be written as a sum of positive squares in 8 ways, for example, as 9492561 + 20611600 = 3081^2 + 4540^2 .
It is a cyclic number.
It is not a de Polignac number, because 30104161 - 23 = 30104153 is a prime.
It is a super-4 number, since 4×301041614 (a number of 31 digits) contains 4444 as substring.
It is not an unprimeable number, because it can be changed into a prime (30104167) 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 15 ways as a sum of consecutive naturals, for example, 152715 + ... + 152911.
It is an arithmetic number, because the mean of its divisors is an integer number (2044845).
Almost surely, 230104161 is an apocalyptic number.
It is an amenable number.
30104161 is a deficient number, since it is larger than the sum of its proper divisors (2613359).
30104161 is a wasteful number, since it uses less digits than its factorization.
30104161 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 404.
The product of its (nonzero) digits is 72, while the sum is 16.
The square root of 30104161 is about 5486.7258907294. The cubic root of 30104161 is about 311.0824490271.
Adding to 30104161 its reverse (16140103), we get a palindrome (46244264).
The spelling of 30104161 in words is "thirty million, one hundred four thousand, one hundred sixty-one".
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