Base | Representation |
---|---|
bin | 111010000111… |
… | …0111110000000 |
3 | 2010100001000010 |
4 | 1310032332000 |
5 | 30300020031 |
6 | 3005024520 |
7 | 516663603 |
oct | 164167600 |
9 | 63301003 |
10 | 30470016 |
11 | 16221635 |
12 | a255140 |
13 | 640abc5 |
14 | 409233a |
15 | 2a1d246 |
hex | 1d0ef80 |
30470016 has 32 divisors (see below), whose sum is σ = 80937000. Its totient is φ = 10156544.
The previous prime is 30470003. The next prime is 30470017. The reversal of 30470016 is 61007403.
It is a tau number, because it is divible by the number of its divisors (32).
It is a junction number, because it is equal to n+sod(n) for n = 30469974 and 30470001.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30470017) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39291 + ... + 40058.
Almost surely, 230470016 is an apocalyptic number.
It is an amenable number.
30470016 is an abundant number, since it is smaller than the sum of its proper divisors (50466984).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30470016 is an equidigital number, since it uses as much as digits as its factorization.
30470016 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 79366 (or 79354 counting only the distinct ones).
The product of its (nonzero) digits is 504, while the sum is 21.
The square root of 30470016 is about 5519.9652172817. The cubic root of 30470016 is about 312.3375702010.
Adding to 30470016 its reverse (61007403), we get a palindrome (91477419).
The spelling of 30470016 in words is "thirty million, four hundred seventy thousand, sixteen".
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