Base | Representation |
---|---|
bin | 101000001000… |
… | …011001001111 |
3 | 201210110220221 |
4 | 220020121033 |
5 | 10143121033 |
6 | 1013252211 |
7 | 155263654 |
oct | 50103117 |
9 | 21713827 |
10 | 10520143 |
11 | 5a35a37 |
12 | 3634067 |
13 | 224454a |
14 | 157bc2b |
15 | dcc12d |
hex | a0864f |
10520143 has 2 divisors, whose sum is σ = 10520144. Its totient is φ = 10520142.
The previous prime is 10520119. The next prime is 10520179. The reversal of 10520143 is 34102501.
It is a weak prime.
It is an emirp because it is prime and its reverse (34102501) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 10520143 - 29 = 10519631 is a prime.
It is a super-2 number, since 2×105201432 = 221346817480898, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (10520743) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5260071 + 5260072.
It is an arithmetic number, because the mean of its divisors is an integer number (5260072).
Almost surely, 210520143 is an apocalyptic number.
10520143 is a deficient number, since it is larger than the sum of its proper divisors (1).
10520143 is an equidigital number, since it uses as much as digits as its factorization.
10520143 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 120, while the sum is 16.
The square root of 10520143 is about 3243.4769923648. The cubic root of 10520143 is about 219.1158939833.
Adding to 10520143 its reverse (34102501), we get a palindrome (44622644).
The spelling of 10520143 in words is "ten million, five hundred twenty thousand, one hundred forty-three".
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