Base | Representation |
---|---|
bin | 111010011100… |
… | …0101101110101 |
3 | 2010122201120100 |
4 | 1310320231311 |
5 | 30321003023 |
6 | 3012424313 |
7 | 521305254 |
oct | 164705565 |
9 | 63581510 |
10 | 30641013 |
11 | 16329057 |
12 | a318099 |
13 | 646a9a0 |
14 | 40d879b |
15 | 2a53c43 |
hex | 1d38b75 |
30641013 has 24 divisors (see below), whose sum is σ = 47858720. Its totient is φ = 18779040.
The previous prime is 30641011. The next prime is 30641029. The reversal of 30641013 is 31014603.
It is not a de Polignac number, because 30641013 - 21 = 30641011 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30641011) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43998 + ... + 44688.
Almost surely, 230641013 is an apocalyptic number.
It is an amenable number.
30641013 is a deficient number, since it is larger than the sum of its proper divisors (17217707).
30641013 is a wasteful number, since it uses less digits than its factorization.
30641013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1089 (or 1086 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
The square root of 30641013 is about 5535.4325034274. The cubic root of 30641013 is about 312.9207576008.
Adding to 30641013 its reverse (31014603), we get a palindrome (61655616).
The spelling of 30641013 in words is "thirty million, six hundred forty-one thousand, thirteen".
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