Base | Representation |
---|---|
bin | 111010000100… |
… | …0001001000101 |
3 | 2010021121122110 |
4 | 1310020021011 |
5 | 30243121203 |
6 | 3004251233 |
7 | 516516225 |
oct | 164101105 |
9 | 63247573 |
10 | 30442053 |
11 | 16202624 |
12 | a240b19 |
13 | 63cb265 |
14 | 4086085 |
15 | 2a14d03 |
hex | 1d08245 |
30442053 has 32 divisors (see below), whose sum is σ = 44651520. Its totient is φ = 18374400.
The previous prime is 30442051. The next prime is 30442079. The reversal of 30442053 is 35024403.
It is a happy number.
It is not a de Polignac number, because 30442053 - 21 = 30442051 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30442051) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201528 + ... + 201678.
It is an arithmetic number, because the mean of its divisors is an integer number (1395360).
Almost surely, 230442053 is an apocalyptic number.
It is an amenable number.
30442053 is a deficient number, since it is larger than the sum of its proper divisors (14209467).
30442053 is a wasteful number, since it uses less digits than its factorization.
30442053 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 297.
The product of its (nonzero) digits is 1440, while the sum is 21.
The square root of 30442053 is about 5517.4317394962. The cubic root of 30442053 is about 312.2419946183.
Adding to 30442053 its reverse (35024403), we get a palindrome (65466456).
The spelling of 30442053 in words is "thirty million, four hundred forty-two thousand, fifty-three".
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