Base | Representation |
---|---|
bin | 111001011111… |
… | …1101111111111 |
3 | 2002201112220022 |
4 | 1302333233333 |
5 | 30204124120 |
6 | 2554042355 |
7 | 514142600 |
oct | 162775777 |
9 | 62645808 |
10 | 30145535 |
11 | 1601a872 |
12 | a1193bb |
13 | 63262c4 |
14 | 4009da7 |
15 | 29a7025 |
hex | 1cbfbff |
30145535 has 24 divisors (see below), whose sum is σ = 42698016. Its totient is φ = 20368320.
The previous prime is 30145483. The next prime is 30145561. The reversal of 30145535 is 53554103.
It is not a de Polignac number, because 30145535 - 216 = 30079999 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16529 + ... + 18261.
It is an arithmetic number, because the mean of its divisors is an integer number (1779084).
Almost surely, 230145535 is an apocalyptic number.
30145535 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
30145535 is a deficient number, since it is larger than the sum of its proper divisors (12552481).
30145535 is a wasteful number, since it uses less digits than its factorization.
30145535 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1823 (or 1816 counting only the distinct ones).
The product of its (nonzero) digits is 4500, while the sum is 26.
The square root of 30145535 is about 5490.4949685798. The cubic root of 30145535 is about 311.2248970362.
Adding to 30145535 its reverse (53554103), we get a palindrome (83699638).
The spelling of 30145535 in words is "thirty million, one hundred forty-five thousand, five hundred thirty-five".
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