Base | Representation |
---|---|
bin | 111001100111… |
… | …1111011111000 |
3 | 2002211220211202 |
4 | 1303033323320 |
5 | 30213234312 |
6 | 2555313332 |
7 | 514540100 |
oct | 163177370 |
9 | 62756752 |
10 | 30211832 |
11 | 16065662 |
12 | a14b848 |
13 | 634a531 |
14 | 4026200 |
15 | 29bb9c2 |
hex | 1ccfef8 |
30211832 has 48 divisors (see below), whose sum is σ = 67709160. Its totient is φ = 12591936.
The previous prime is 30211829. The next prime is 30211837. The reversal of 30211832 is 23811203.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30211837) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13463 + ... + 15545.
Almost surely, 230211832 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 30211832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33854580).
30211832 is an abundant number, since it is smaller than the sum of its proper divisors (37497328).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30211832 is a wasteful number, since it uses less digits than its factorization.
30211832 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2140 (or 2129 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 20.
The square root of 30211832 is about 5496.5290866146. The cubic root of 30211832 is about 311.4528818182.
The spelling of 30211832 in words is "thirty million, two hundred eleven thousand, eight hundred thirty-two".
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