Base | Representation |
---|---|
bin | 111001100110… |
… | …1110010000000 |
3 | 2002211110201221 |
4 | 1303031302000 |
5 | 30212444013 |
6 | 2555204424 |
7 | 514502263 |
oct | 163156200 |
9 | 62743657 |
10 | 30203008 |
11 | 16059a70 |
12 | a146714 |
13 | 6346504 |
14 | 4022cda |
15 | 29b908d |
hex | 1ccdc80 |
30203008 has 64 divisors (see below), whose sum is σ = 69156000. Its totient is φ = 12994560.
The previous prime is 30202981. The next prime is 30203009. The reversal of 30203008 is 80030203.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (64).
It is a Harshad number since it is a multiple of its sum of digits (16).
It is a junction number, because it is equal to n+sod(n) for n = 30202982 and 30203000.
It is not an unprimeable number, because it can be changed into a prime (30203009) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26188 + ... + 27316.
Almost surely, 230203008 is an apocalyptic number.
30203008 is a gapful number since it is divisible by the number (38) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30203008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34578000).
30203008 is an abundant number, since it is smaller than the sum of its proper divisors (38952992).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30203008 is a wasteful number, since it uses less digits than its factorization.
30203008 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1173 (or 1161 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 16.
The square root of 30203008 is about 5495.7263396206. The cubic root of 30203008 is about 311.4225567473.
The spelling of 30203008 in words is "thirty million, two hundred three thousand, eight".
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