Base | Representation |
---|---|
bin | 111001110000… |
… | …1110011100110 |
3 | 2002222122020210 |
4 | 1303201303212 |
5 | 30223110110 |
6 | 3001040250 |
7 | 515263356 |
oct | 163416346 |
9 | 62878223 |
10 | 30285030 |
11 | 16105656 |
12 | a186086 |
13 | 6374949 |
14 | 4044b66 |
15 | 29d3520 |
hex | 1ce1ce6 |
30285030 has 16 divisors (see below), whose sum is σ = 72684144. Its totient is φ = 8076000.
The previous prime is 30285023. The next prime is 30285131. The reversal of 30285030 is 3058203.
It is a super-3 number, since 3×302850303 (a number of 23 digits) contains 333 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30284988 and 30285006.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504721 + ... + 504780.
It is an arithmetic number, because the mean of its divisors is an integer number (4542759).
Almost surely, 230285030 is an apocalyptic number.
30285030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30285030 is an abundant number, since it is smaller than the sum of its proper divisors (42399114).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30285030 is a wasteful number, since it uses less digits than its factorization.
30285030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1009511.
The product of its (nonzero) digits is 720, while the sum is 21.
The square root of 30285030 is about 5503.1836240489. The cubic root of 30285030 is about 311.7042109569.
The spelling of 30285030 in words is "thirty million, two hundred eighty-five thousand, thirty".
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