Base | Representation |
---|---|
bin | 100110011001… |
… | …0101111101011 |
3 | 1101212202021000 |
4 | 1030302233223 |
5 | 20123141140 |
6 | 1555250043 |
7 | 333052236 |
oct | 114625753 |
9 | 41782230 |
10 | 20130795 |
11 | 103aa623 |
12 | 68a9923 |
13 | 422ab19 |
14 | 296041d |
15 | 1b79a30 |
hex | 1332beb |
20130795 has 32 divisors (see below), whose sum is σ = 36671040. Its totient is φ = 10471680.
The previous prime is 20130791. The next prime is 20130797. The reversal of 20130795 is 59703102.
It is not a de Polignac number, because 20130795 - 22 = 20130791 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (20130791) 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, 3717 + ... + 7353.
It is an arithmetic number, because the mean of its divisors is an integer number (1145970).
Almost surely, 220130795 is an apocalyptic number.
20130795 is a deficient number, since it is larger than the sum of its proper divisors (16540245).
20130795 is a wasteful number, since it uses less digits than its factorization.
20130795 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3692 (or 3686 counting only the distinct ones).
The product of its (nonzero) digits is 1890, while the sum is 27.
The square root of 20130795 is about 4486.7354501909. The cubic root of 20130795 is about 272.0321968447.
Adding to 20130795 its product of nonzero digits (1890), we get a triangular number (20132685 = T6345).
Adding to 20130795 its reverse (59703102), we get a palindrome (79833897).
The spelling of 20130795 in words is "twenty million, one hundred thirty thousand, seven hundred ninety-five".
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