Base | Representation |
---|---|
bin | 111001110111… |
… | …1100001111000 |
3 | 2010002111100122 |
4 | 1303233201320 |
5 | 30231404430 |
6 | 3002152412 |
7 | 515616266 |
oct | 163574170 |
9 | 63074318 |
10 | 30341240 |
11 | 16143906 |
12 | a1b2708 |
13 | 63943c7 |
14 | 405b436 |
15 | 29e4ee5 |
hex | 1cef878 |
30341240 has 32 divisors (see below), whose sum is σ = 68904000. Its totient is φ = 12023424.
The previous prime is 30341239. The next prime is 30341249. The reversal of 30341240 is 4214303.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30341249) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 881 + ... + 7839.
It is an arithmetic number, because the mean of its divisors is an integer number (2153250).
Almost surely, 230341240 is an apocalyptic number.
It is an amenable number.
30341240 is an abundant number, since it is smaller than the sum of its proper divisors (38562760).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30341240 is a wasteful number, since it uses less digits than its factorization.
30341240 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7079 (or 7075 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 17.
The square root of 30341240 is about 5508.2883003706. The cubic root of 30341240 is about 311.8969361534.
Adding to 30341240 its reverse (4214303), we get a palindrome (34555543).
The spelling of 30341240 in words is "thirty million, three hundred forty-one thousand, two hundred forty".
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