Base | Representation |
---|---|
bin | 10000000001011111010… |
… | …101100000011001001001 |
3 | 10220021011022210112202200 |
4 | 100001133111200121021 |
5 | 121020033420213001 |
6 | 2201502104150413 |
7 | 142360362634032 |
oct | 20013725403111 |
9 | 3807138715680 |
10 | 1101111101001 |
11 | 394a8456868a |
12 | 15949ba68409 |
13 | 7cab00449a2 |
14 | 3b418c95a89 |
15 | 1d9982cb086 |
hex | 1005f560649 |
1101111101001 has 24 divisors (see below), whose sum is σ = 1633233023136. Its totient is φ = 714468928320.
The previous prime is 1101111100949. The next prime is 1101111101021. The reversal of 1101111101001 is 1001011111011.
It is not a de Polignac number, because 1101111101001 - 26 = 1101111100937 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is not an unprimeable number, because it can be changed into a prime (1101111101021) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4917420 + ... + 5136461.
It is an arithmetic number, because the mean of its divisors is an integer number (68051375964).
Almost surely, 21101111101001 is an apocalyptic number.
It is an amenable number.
1101111101001 is a deficient number, since it is larger than the sum of its proper divisors (532121922135).
1101111101001 is a wasteful number, since it uses less digits than its factorization.
1101111101001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10054213 (or 10054210 counting only the distinct ones).
The product of its (nonzero) digits is 1, while the sum is 9.
Adding to 1101111101001 its reverse (1001011111011), we get a palindrome (2102122212012).
It can be divided in two parts, 1101111 and 101001, that multiplied together give a palindrome (111213312111).
The spelling of 1101111101001 in words is "one trillion, one hundred one billion, one hundred eleven million, one hundred one thousand, one".
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