Base | Representation |
---|---|
bin | 111001011111… |
… | …1101100101101 |
3 | 2002201112121112 |
4 | 1302333230231 |
5 | 30204122300 |
6 | 2554041405 |
7 | 514142150 |
oct | 162775455 |
9 | 62645545 |
10 | 30145325 |
11 | 1601a6a1 |
12 | a119265 |
13 | 6326192 |
14 | 4009c97 |
15 | 29a6e35 |
hex | 1cbfb2d |
30145325 has 12 divisors (see below), whose sum is σ = 42720480. Its totient is φ = 20670960.
The previous prime is 30145321. The next prime is 30145333. The reversal of 30145325 is 52354103.
It is not a de Polignac number, because 30145325 - 22 = 30145321 is a prime.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 30145325.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30145321) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85955 + ... + 86304.
It is an arithmetic number, because the mean of its divisors is an integer number (3560040).
Almost surely, 230145325 is an apocalyptic number.
30145325 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
30145325 is a deficient number, since it is larger than the sum of its proper divisors (12575155).
30145325 is a wasteful number, since it uses less digits than its factorization.
30145325 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 172276 (or 172271 counting only the distinct ones).
The product of its (nonzero) digits is 1800, while the sum is 23.
The square root of 30145325 is about 5490.4758445876. The cubic root of 30145325 is about 311.2241743490.
Adding to 30145325 its reverse (52354103), we get a palindrome (82499428).
The spelling of 30145325 in words is "thirty million, one hundred forty-five thousand, three hundred twenty-five".
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