Base | Representation |
---|---|
bin | 111001010010… |
… | …1100001100101 |
3 | 2002112002112212 |
4 | 1302211201211 |
5 | 30142204432 |
6 | 2551453205 |
7 | 513214454 |
oct | 162454145 |
9 | 62462485 |
10 | 30038117 |
11 | 15a5709a |
12 | a087205 |
13 | 62b9445 |
14 | 3dbcb9b |
15 | 29852b2 |
hex | 1ca5865 |
30038117 has 8 divisors (see below), whose sum is σ = 31603992. Its totient is φ = 28512000.
The previous prime is 30038093. The next prime is 30038119. The reversal of 30038117 is 71183003.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 73441 + 29964676 = 271^2 + 5474^2 .
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 30038117 - 210 = 30037093 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30038092 and 30038101.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30038119) 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, 8384 + ... + 11417.
It is an arithmetic number, because the mean of its divisors is an integer number (3950499).
Almost surely, 230038117 is an apocalyptic number.
30038117 is a gapful number since it is divisible by the number (37) formed by its first and last digit.
It is an amenable number.
30038117 is a deficient number, since it is larger than the sum of its proper divisors (1565875).
30038117 is a wasteful number, since it uses less digits than its factorization.
30038117 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19879.
The product of its (nonzero) digits is 504, while the sum is 23.
The square root of 30038117 is about 5480.7040606112. The cubic root of 30038117 is about 310.8547931015.
The spelling of 30038117 in words is "thirty million, thirty-eight thousand, one hundred seventeen".
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