Base | Representation |
---|---|
bin | 100110010010… |
… | …0100110001001 |
3 | 1101202210202120 |
4 | 1030210212021 |
5 | 20114312331 |
6 | 1554121453 |
7 | 332421255 |
oct | 114444611 |
9 | 41683676 |
10 | 20072841 |
11 | 10370028 |
12 | 6880289 |
13 | 420a629 |
14 | 2947265 |
15 | 1b67796 |
hex | 1324989 |
20072841 has 16 divisors (see below), whose sum is σ = 27913728. Its totient is φ = 12816000.
The previous prime is 20072839. The next prime is 20072867. The reversal of 20072841 is 14827002.
It is not a de Polignac number, because 20072841 - 21 = 20072839 is a prime.
It is a super-2 number, since 2×200728412 = 805837891622562, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (20072831) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8325 + ... + 10461.
It is an arithmetic number, because the mean of its divisors is an integer number (1744608).
Almost surely, 220072841 is an apocalyptic number.
It is an amenable number.
20072841 is a deficient number, since it is larger than the sum of its proper divisors (7840887).
20072841 is a wasteful number, since it uses less digits than its factorization.
20072841 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2272.
The product of its (nonzero) digits is 896, while the sum is 24.
The square root of 20072841 is about 4480.2724247528. The cubic root of 20072841 is about 271.7708972289.
Adding to 20072841 its reverse (14827002), we get a palindrome (34899843).
The spelling of 20072841 in words is "twenty million, seventy-two thousand, eight hundred forty-one".
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