Base | Representation |
---|---|
bin | 111001011111… |
… | …0110011110101 |
3 | 2002201100121201 |
4 | 1302332303311 |
5 | 30204013220 |
6 | 2554012501 |
7 | 514125430 |
oct | 162766365 |
9 | 62640551 |
10 | 30141685 |
11 | 16017992 |
12 | a117131 |
13 | 6324622 |
14 | 4008817 |
15 | 29a5d0a |
hex | 1cbecf5 |
30141685 has 8 divisors (see below), whose sum is σ = 41337216. Its totient is φ = 20668560.
The previous prime is 30141673. The next prime is 30141689. The reversal of 30141685 is 58614103.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30141685 - 27 = 30141557 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30141689) 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 7 ways as a sum of consecutive naturals, for example, 430561 + ... + 430630.
It is an arithmetic number, because the mean of its divisors is an integer number (5167152).
Almost surely, 230141685 is an apocalyptic number.
30141685 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
30141685 is a deficient number, since it is larger than the sum of its proper divisors (11195531).
30141685 is an equidigital number, since it uses as much as digits as its factorization.
30141685 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 861203.
The product of its (nonzero) digits is 2880, while the sum is 28.
The square root of 30141685 is about 5490.1443514720. The cubic root of 30141685 is about 311.2116472369.
Adding to 30141685 its reverse (58614103), we get a palindrome (88755788).
The spelling of 30141685 in words is "thirty million, one hundred forty-one thousand, six hundred eighty-five".
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