Base | Representation |
---|---|
bin | 111011101010100… |
… | …001000010100011 |
3 | 2120202120010101200 |
4 | 323222201002203 |
5 | 4022224013443 |
6 | 243154532243 |
7 | 33543240423 |
oct | 7352410243 |
9 | 2522503350 |
10 | 1001001123 |
11 | 474047a61 |
12 | 23b297083 |
13 | 12c4caa75 |
14 | 96d2c483 |
15 | 5cd2cdd3 |
hex | 3baa10a3 |
1001001123 has 12 divisors (see below), whose sum is σ = 1530943128. Its totient is φ = 628079040.
The previous prime is 1001001119. The next prime is 1001001137. The reversal of 1001001123 is 3211001001.
It is not a de Polignac number, because 1001001123 - 22 = 1001001119 is a prime.
It is a super-2 number, since 2×10010011232 = 2004006496494522258, which contains 22 as substring.
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 (1001001223) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3271093 + ... + 3271398.
It is an arithmetic number, because the mean of its divisors is an integer number (127578594).
Almost surely, 21001001123 is an apocalyptic number.
1001001123 is a deficient number, since it is larger than the sum of its proper divisors (529942005).
1001001123 is a wasteful number, since it uses less digits than its factorization.
1001001123 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6542514 (or 6542511 counting only the distinct ones).
The product of its (nonzero) digits is 6, while the sum is 9.
The square root of 1001001123 is about 31638.6017864254. The cubic root of 1001001123 is about 1000.3335963678. Note that the first 3 decimals are identical.
Adding to 1001001123 its reverse (3211001001), we get a palindrome (4212002124).
The spelling of 1001001123 in words is "one billion, one million, one thousand, one hundred twenty-three".
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