Base | Representation |
---|---|
bin | 111100100001110… |
… | …1001111000010001 |
3 | 12020112200112202011 |
4 | 1321003221320101 |
5 | 13124414013410 |
6 | 533311222521 |
7 | 101221140010 |
oct | 17103517021 |
9 | 5215615664 |
10 | 2031001105 |
11 | 9524a1211 |
12 | 488217a41 |
13 | 264a0cc03 |
14 | 153a48a77 |
15 | bd48818a |
hex | 790e9e11 |
2031001105 has 32 divisors (see below), whose sum is σ = 2941148160. Its totient is φ = 1315258560.
The previous prime is 2031001103. The next prime is 2031001117. The reversal of 2031001105 is 5011001302.
It is not a de Polignac number, because 2031001105 - 21 = 2031001103 is a prime.
It is a super-2 number, since 2×20310011052 = 8249930977022442050, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (2031001103) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215502 + ... + 224728.
It is an arithmetic number, because the mean of its divisors is an integer number (91910880).
Almost surely, 22031001105 is an apocalyptic number.
It is an amenable number.
2031001105 is a deficient number, since it is larger than the sum of its proper divisors (910147055).
2031001105 is a wasteful number, since it uses less digits than its factorization.
2031001105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9589.
The product of its (nonzero) digits is 30, while the sum is 13.
The square root of 2031001105 is about 45066.6296166021. The cubic root of 2031001105 is about 1266.3975254193.
Adding to 2031001105 its reverse (5011001302), we get a palindrome (7042002407).
The spelling of 2031001105 in words is "two billion, thirty-one million, one thousand, one hundred five".
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