Base | Representation |
---|---|
bin | 111001101011… |
… | …1001111001100 |
3 | 2002220102212110 |
4 | 1303113033030 |
5 | 30220213430 |
6 | 3000104020 |
7 | 515023224 |
oct | 163271714 |
9 | 62812773 |
10 | 30241740 |
11 | 16086081 |
12 | a165010 |
13 | 635b029 |
14 | 4033084 |
15 | 29c57b0 |
hex | 1cd73cc |
30241740 has 96 divisors (see below), whose sum is σ = 89026560. Its totient is φ = 7660800.
The previous prime is 30241733. The next prime is 30241741. The reversal of 30241740 is 4714203.
It is not an unprimeable number, because it can be changed into a prime (30241741) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131946 + ... + 132174.
It is an arithmetic number, because the mean of its divisors is an integer number (927360).
Almost surely, 230241740 is an apocalyptic number.
30241740 is a gapful number since it is divisible by the number (30) 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 30241740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44513280).
30241740 is an abundant number, since it is smaller than the sum of its proper divisors (58784820).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30241740 is a wasteful number, since it uses less digits than its factorization.
30241740 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 343 (or 341 counting only the distinct ones).
The product of its (nonzero) digits is 672, while the sum is 21.
The square root of 30241740 is about 5499.2490396417. The cubic root of 30241740 is about 311.5556214857. Note that the first 3 decimals are identical.
Adding to 30241740 its reverse (4714203), we get a palindrome (34955943).
The spelling of 30241740 in words is "thirty million, two hundred forty-one thousand, seven hundred forty".
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