Base | Representation |
---|---|
bin | 100110001010… |
… | …1110000001001 |
3 | 1101122201100201 |
4 | 1030111300021 |
5 | 20110341131 |
6 | 1552532201 |
7 | 332046100 |
oct | 114256011 |
9 | 41581321 |
10 | 20012041 |
11 | 10329385 |
12 | 6851061 |
13 | 41b8a5a |
14 | 292d037 |
15 | 1b54761 |
hex | 1315c09 |
20012041 has 12 divisors (see below), whose sum is σ = 23444100. Its totient is φ = 17031840.
The previous prime is 20012023. The next prime is 20012053. The reversal of 20012041 is 14021002.
It can be written as a sum of positive squares in 2 ways, for example, as 3980025 + 16032016 = 1995^2 + 4004^2 .
It is not a de Polignac number, because 20012041 - 27 = 20011913 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (20012011) 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, 5931 + ... + 8671.
It is an arithmetic number, because the mean of its divisors is an integer number (1953675).
Almost surely, 220012041 is an apocalyptic number.
It is an amenable number.
20012041 is a deficient number, since it is larger than the sum of its proper divisors (3432059).
20012041 is a wasteful number, since it uses less digits than its factorization.
20012041 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2904 (or 2897 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 10.
The square root of 20012041 is about 4473.4819771628. The cubic root of 20012041 is about 271.4962245687.
Adding to 20012041 its reverse (14021002), we get a palindrome (34033043).
The spelling of 20012041 in words is "twenty million, twelve thousand, forty-one".
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