Base | Representation |
---|---|
bin | 111010000101… |
… | …0111011000101 |
3 | 2010022012021101 |
4 | 1310022323011 |
5 | 30244002240 |
6 | 3004420101 |
7 | 516564361 |
oct | 164127305 |
9 | 63265241 |
10 | 30453445 |
11 | 16210140 |
12 | a247631 |
13 | 64034b9 |
14 | 408a2a1 |
15 | 2a1839a |
hex | 1d0aec5 |
30453445 has 8 divisors (see below), whose sum is σ = 39866400. Its totient is φ = 22147920.
The previous prime is 30453433. The next prime is 30453461. The reversal of 30453445 is 54435403.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30453445 - 25 = 30453413 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276795 + ... + 276904.
It is an arithmetic number, because the mean of its divisors is an integer number (4983300).
Almost surely, 230453445 is an apocalyptic number.
It is an amenable number.
30453445 is a deficient number, since it is larger than the sum of its proper divisors (9412955).
30453445 is a wasteful number, since it uses less digits than its factorization.
30453445 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 553715.
The product of its (nonzero) digits is 14400, while the sum is 28.
The square root of 30453445 is about 5518.4640073122. The cubic root of 30453445 is about 312.2809387415.
Adding to 30453445 its reverse (54435403), we get a palindrome (84888848).
The spelling of 30453445 in words is "thirty million, four hundred fifty-three thousand, four hundred forty-five".
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