Base | Representation |
---|---|
bin | 111001011000… |
… | …0111001111010 |
3 | 2002121110111021 |
4 | 1302300321322 |
5 | 30200202410 |
6 | 2552453054 |
7 | 513500404 |
oct | 162607172 |
9 | 62543437 |
10 | 30084730 |
11 | 15a89115 |
12 | a0aa18a |
13 | 6304720 |
14 | 3dd1b74 |
15 | 2993eda |
hex | 1cb0e7a |
30084730 has 32 divisors (see below), whose sum is σ = 61753104. Its totient is φ = 10454016.
The previous prime is 30084721. The next prime is 30084731. The reversal of 30084730 is 3748003.
It can be written as a sum of positive squares in 8 ways, for example, as 2301289 + 27783441 = 1517^2 + 5271^2 .
It is a junction number, because it is equal to n+sod(n) for n = 30084695 and 30084704.
It is not an unprimeable number, because it can be changed into a prime (30084731) 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, 4597 + ... + 9016.
Almost surely, 230084730 is an apocalyptic number.
30084730 is an abundant number, since it is smaller than the sum of its proper divisors (31668374).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30084730 is a wasteful number, since it uses less digits than its factorization.
30084730 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13650.
The product of its (nonzero) digits is 2016, while the sum is 25.
The square root of 30084730 is about 5484.9548767515. The cubic root of 30084730 is about 311.0155043052.
The spelling of 30084730 in words is "thirty million, eighty-four thousand, seven hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •