Base | Representation |
---|---|
bin | 111001001110… |
… | …0010000100101 |
3 | 2002110011111020 |
4 | 1302130100211 |
5 | 30140001130 |
6 | 2551001353 |
7 | 512666016 |
oct | 162342045 |
9 | 62404436 |
10 | 30000165 |
11 | 15a30628 |
12 | a069259 |
13 | 62a50a0 |
14 | 3dad00d |
15 | 2978e10 |
hex | 1c9c425 |
30000165 has 32 divisors (see below), whose sum is σ = 53948160. Its totient is φ = 14125056.
The previous prime is 30000163. The next prime is 30000167. The reversal of 30000165 is 56100003.
It is an interprime number because it is at equal distance from previous prime (30000163) and next prime (30000167).
It is not a de Polignac number, because 30000165 - 21 = 30000163 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (15).
30000165 is a modest number, since divided by 165 gives 30 as remainder.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30000163) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1141 + ... + 7829.
It is an arithmetic number, because the mean of its divisors is an integer number (1685880).
Almost surely, 230000165 is an apocalyptic number.
It is an amenable number.
30000165 is a deficient number, since it is larger than the sum of its proper divisors (23947995).
30000165 is a wasteful number, since it uses less digits than its factorization.
30000165 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6733.
The product of its (nonzero) digits is 90, while the sum is 15.
The square root of 30000165 is about 5477.2406374013. The cubic root of 30000165 is about 310.7238202536.
Adding to 30000165 its reverse (56100003), we get a palindrome (86100168).
The spelling of 30000165 in words is "thirty million, one hundred sixty-five", and thus it is an aban number.
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