Base | Representation |
---|---|
bin | 111001111101… |
… | …1111101101001 |
3 | 2010012002012220 |
4 | 1303323331221 |
5 | 30240022134 |
6 | 3003224253 |
7 | 516220623 |
oct | 163737551 |
9 | 63162186 |
10 | 30392169 |
11 | 161790a5 |
12 | a218089 |
13 | 63b1642 |
14 | 4071c13 |
15 | 2a05149 |
hex | 1cfbf69 |
30392169 has 8 divisors (see below), whose sum is σ = 41036160. Its totient is φ = 20004816.
The previous prime is 30392149. The next prime is 30392171. The reversal of 30392169 is 96129303.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30392169 - 215 = 30359401 is a prime.
It is a super-2 number, since 2×303921692 = 1847367873049122, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (30392149) 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, 63882 + ... + 64355.
It is an arithmetic number, because the mean of its divisors is an integer number (5129520).
Almost surely, 230392169 is an apocalyptic number.
It is an amenable number.
30392169 is a deficient number, since it is larger than the sum of its proper divisors (10643991).
30392169 is a wasteful number, since it uses less digits than its factorization.
30392169 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 128319.
The product of its (nonzero) digits is 8748, while the sum is 33.
The square root of 30392169 is about 5512.9093045324. The cubic root of 30392169 is about 312.0713491492.
The spelling of 30392169 in words is "thirty million, three hundred ninety-two thousand, one hundred sixty-nine".
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