Base | Representation |
---|---|
bin | 111010001111… |
… | …0100111011001 |
3 | 2010110021220210 |
4 | 1310132213121 |
5 | 30304042410 |
6 | 3010241333 |
7 | 520351500 |
oct | 164364731 |
9 | 63407823 |
10 | 30534105 |
11 | 162657a8 |
12 | a286249 |
13 | 6431124 |
14 | 40ab837 |
15 | 2a32220 |
hex | 1d1e9d9 |
30534105 has 24 divisors (see below), whose sum is σ = 56832192. Its totient is φ = 13958112.
The previous prime is 30534103. The next prime is 30534107. The reversal of 30534105 is 50143503.
It is an interprime number because it is at equal distance from previous prime (30534103) and next prime (30534107).
It is not a de Polignac number, because 30534105 - 21 = 30534103 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is not an unprimeable number, because it can be changed into a prime (30534103) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20037 + ... + 21506.
It is an arithmetic number, because the mean of its divisors is an integer number (2368008).
Almost surely, 230534105 is an apocalyptic number.
30534105 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
30534105 is a deficient number, since it is larger than the sum of its proper divisors (26298087).
30534105 is a wasteful number, since it uses less digits than its factorization.
30534105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 41565 (or 41558 counting only the distinct ones).
The product of its (nonzero) digits is 900, while the sum is 21.
The square root of 30534105 is about 5525.7673675246. The cubic root of 30534105 is about 312.5564015531.
Subtracting from 30534105 its product of nonzero digits (900), we obtain a triangular number (30533205 = T7814).
Adding to 30534105 its reverse (50143503), we get a palindrome (80677608).
The spelling of 30534105 in words is "thirty million, five hundred thirty-four thousand, one hundred five".
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