Base | Representation |
---|---|
bin | 111001010110… |
… | …1000101000000 |
3 | 2002120122222202 |
4 | 1302231011000 |
5 | 30144202211 |
6 | 2552252332 |
7 | 513403613 |
oct | 162550500 |
9 | 62518882 |
10 | 30069056 |
11 | 15a78366 |
12 | a0a10a8 |
13 | 62ca554 |
14 | 3dca17a |
15 | 298e53b |
hex | 1cad140 |
30069056 has 56 divisors (see below), whose sum is σ = 65425320. Its totient is φ = 13647872.
The previous prime is 30069041. The next prime is 30069121. The reversal of 30069056 is 65096003.
It can be written as a sum of positive squares in 4 ways, for example, as 7182400 + 22886656 = 2680^2 + 4784^2 .
It is a super-2 number, since 2×300690562 = 1808296257462272, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (29).
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, 31076 + ... + 32028.
Almost surely, 230069056 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30069056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32712660).
30069056 is an abundant number, since it is smaller than the sum of its proper divisors (35356264).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30069056 is a wasteful number, since it uses less digits than its factorization.
30069056 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1011 (or 1001 counting only the distinct ones).
The product of its (nonzero) digits is 4860, while the sum is 29.
The square root of 30069056 is about 5483.5258730127. The cubic root of 30069056 is about 310.9614823939.
The spelling of 30069056 in words is "thirty million, sixty-nine thousand, fifty-six".
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