Base | Representation |
---|---|
bin | 111010111110… |
… | …0111000001001 |
3 | 2011011220112122 |
4 | 1311330320021 |
5 | 30403421301 |
6 | 3022421025 |
7 | 523550234 |
oct | 165747011 |
9 | 64156478 |
10 | 30920201 |
11 | 164a9894 |
12 | a431775 |
13 | 6537aa0 |
14 | 416c41b |
15 | 2aab81b |
hex | 1d7ce09 |
30920201 has 8 divisors (see below), whose sum is σ = 35051520. Its totient is φ = 27039312.
The previous prime is 30920179. The next prime is 30920207. The reversal of 30920201 is 10202903.
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 30920201 - 26 = 30920137 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 30920201.
It is not an unprimeable number, because it can be changed into a prime (30920207) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62345 + ... + 62838.
It is an arithmetic number, because the mean of its divisors is an integer number (4381440).
Almost surely, 230920201 is an apocalyptic number.
It is an amenable number.
30920201 is a deficient number, since it is larger than the sum of its proper divisors (4131319).
30920201 is a wasteful number, since it uses less digits than its factorization.
30920201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 125215.
The product of its (nonzero) digits is 108, while the sum is 17.
The square root of 30920201 is about 5560.5935834225. The cubic root of 30920201 is about 313.8682862726.
The spelling of 30920201 in words is "thirty million, nine hundred twenty thousand, two hundred one".
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