Base | Representation |
---|---|
bin | 111010000001… |
… | …0010001010101 |
3 | 2010020101122210 |
4 | 1310002101111 |
5 | 30241334010 |
6 | 3003544033 |
7 | 516356142 |
oct | 164022125 |
9 | 63211583 |
10 | 30418005 |
11 | 16196552 |
12 | a22b019 |
13 | 63c0327 |
14 | 407b3c9 |
15 | 2a0cb20 |
hex | 1d02455 |
30418005 has 16 divisors (see below), whose sum is σ = 49337280. Its totient is φ = 16000128.
The previous prime is 30418001. The next prime is 30418009. The reversal of 30418005 is 50081403.
It is an interprime number because it is at equal distance from previous prime (30418001) and next prime (30418009).
It is not a de Polignac number, because 30418005 - 22 = 30418001 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30418001) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12795 + ... + 14984.
It is an arithmetic number, because the mean of its divisors is an integer number (3083580).
Almost surely, 230418005 is an apocalyptic number.
It is an amenable number.
30418005 is a deficient number, since it is larger than the sum of its proper divisors (18919275).
30418005 is a wasteful number, since it uses less digits than its factorization.
30418005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27860.
The product of its (nonzero) digits is 480, while the sum is 21.
The square root of 30418005 is about 5515.2520341323. The cubic root of 30418005 is about 312.1597534110.
Adding to 30418005 its reverse (50081403), we get a palindrome (80499408).
The spelling of 30418005 in words is "thirty million, four hundred eighteen thousand, five".
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