Base | Representation |
---|---|
bin | 100110100011… |
… | …1000111100001 |
3 | 1102000222201121 |
4 | 1031013013201 |
5 | 20133323431 |
6 | 2001132241 |
7 | 333550435 |
oct | 115070741 |
9 | 42028647 |
10 | 20214241 |
11 | 10457293 |
12 | 692a081 |
13 | 4259ab8 |
14 | 29829c5 |
15 | 1b94611 |
hex | 13471e1 |
20214241 has 16 divisors (see below), whose sum is σ = 22083408. Its totient is φ = 18432000.
The previous prime is 20214223. The next prime is 20214269. The reversal of 20214241 is 14241202.
It can be written as a sum of positive squares in 8 ways, for example, as 225 + 20214016 = 15^2 + 4496^2 .
It is a 3-Lehmer number, since φ(20214241) divides (20214241-1)3.
It is a cyclic number.
It is not a de Polignac number, because 20214241 - 27 = 20214113 is a prime.
It is not an unprimeable number, because it can be changed into a prime (20214541) 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, 104641 + ... + 104833.
It is an arithmetic number, because the mean of its divisors is an integer number (1380213).
Almost surely, 220214241 is an apocalyptic number.
It is an amenable number.
20214241 is a deficient number, since it is larger than the sum of its proper divisors (1869167).
20214241 is a wasteful number, since it uses less digits than its factorization.
20214241 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 372.
The product of its (nonzero) digits is 128, while the sum is 16.
The square root of 20214241 is about 4496.0250221724. The cubic root of 20214241 is about 272.4075538611.
Adding to 20214241 its reverse (14241202), we get a palindrome (34455443).
The spelling of 20214241 in words is "twenty million, two hundred fourteen thousand, two hundred forty-one".
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