Base | Representation |
---|---|
bin | 111010010011… |
… | …1011001000111 |
3 | 2010112010020021 |
4 | 1310213121013 |
5 | 30311220210 |
6 | 3011120011 |
7 | 520561345 |
oct | 164473107 |
9 | 63463207 |
10 | 30570055 |
11 | 1628a80a |
12 | a2a3007 |
13 | 64445b9 |
14 | 40ba995 |
15 | 2a3cbda |
hex | 1d27647 |
30570055 has 8 divisors (see below), whose sum is σ = 36733392. Its totient is φ = 24423168.
The previous prime is 30570019. The next prime is 30570109. The reversal of 30570055 is 55007503.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30570055 - 29 = 30569543 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 7 ways as a sum of consecutive naturals, for example, 439 + ... + 7831.
It is an arithmetic number, because the mean of its divisors is an integer number (4591674).
Almost surely, 230570055 is an apocalyptic number.
30570055 is a deficient number, since it is larger than the sum of its proper divisors (6163337).
30570055 is an equidigital number, since it uses as much as digits as its factorization.
30570055 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8225.
The product of its (nonzero) digits is 2625, while the sum is 25.
The square root of 30570055 is about 5529.0193524711. The cubic root of 30570055 is about 312.6790184947.
Adding to 30570055 its reverse (55007503), we get a palindrome (85577558).
The spelling of 30570055 in words is "thirty million, five hundred seventy thousand, fifty-five".
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