Base | Representation |
---|---|
bin | 10010101000111000… |
… | …000100111110100100 |
3 | 1220122202020221120200 |
4 | 102220320010332210 |
5 | 311441331020144 |
6 | 13105515030500 |
7 | 1305641620356 |
oct | 225070047644 |
9 | 56582227520 |
10 | 20013141924 |
11 | 853a995816 |
12 | 3a6643b430 |
13 | 1b6c329619 |
14 | d7bd470d6 |
15 | 7c1eb4c69 |
hex | 4a8e04fa4 |
20013141924 has 36 divisors (see below), whose sum is σ = 50706190080. Its totient is φ = 6655564080.
The previous prime is 20013141923. The next prime is 20013141971. The reversal of 20013141924 is 42914131002.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (36).
It is not an unprimeable number, because it can be changed into a prime (20013141923) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 629404 + ... + 660435.
It is an arithmetic number, because the mean of its divisors is an integer number (1408505280).
Almost surely, 220013141924 is an apocalyptic number.
It is an amenable number.
20013141924 is an abundant number, since it is smaller than the sum of its proper divisors (30693048156).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20013141924 is a wasteful number, since it uses less digits than its factorization.
20013141924 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1290280 (or 1290275 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 27.
Adding to 20013141924 its reverse (42914131002), we get a palindrome (62927272926).
The spelling of 20013141924 in words is "twenty billion, thirteen million, one hundred forty-one thousand, nine hundred twenty-four".
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