Base | Representation |
---|---|
bin | 100111001000000100… |
… | …001010101011110101 |
3 | 11000102211120011202111 |
4 | 213020010022223311 |
5 | 1142014334204310 |
6 | 31144422411021 |
7 | 3015035441533 |
oct | 471004125365 |
9 | 130384504674 |
10 | 42011241205 |
11 | 168a928335a |
12 | 8185590a71 |
13 | 3c6696440b |
14 | 2067751153 |
15 | 115d36a28a |
hex | 9c810aaf5 |
42011241205 has 16 divisors (see below), whose sum is σ = 50731834608. Its totient is φ = 33397056000.
The previous prime is 42011241203. The next prime is 42011241241. The reversal of 42011241205 is 50214211024.
It can be written as a sum of positive squares in 8 ways, for example, as 1636768849 + 40374472356 = 40457^2 + 200934^2 .
It is not a de Polignac number, because 42011241205 - 21 = 42011241203 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (42011241203) 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, 1177935 + ... + 1213075.
It is an arithmetic number, because the mean of its divisors is an integer number (3170739663).
Almost surely, 242011241205 is an apocalyptic number.
It is an amenable number.
42011241205 is a deficient number, since it is larger than the sum of its proper divisors (8720593403).
42011241205 is a wasteful number, since it uses less digits than its factorization.
42011241205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 36648.
The product of its (nonzero) digits is 640, while the sum is 22.
Adding to 42011241205 its reverse (50214211024), we get a palindrome (92225452229).
The spelling of 42011241205 in words is "forty-two billion, eleven million, two hundred forty-one thousand, two hundred five".
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