Base | Representation |
---|---|
bin | 111110101111000… |
… | …0101110010000001 |
3 | 12102201000010000111 |
4 | 1331132011302001 |
5 | 13302342240001 |
6 | 544514151321 |
7 | 103110354601 |
oct | 17536056201 |
9 | 5381003014 |
10 | 2105040001 |
11 | 990270789 |
12 | 4a8b82541 |
13 | 277163bcc |
14 | 15d7dcc01 |
15 | c4c10851 |
hex | 7d785c81 |
2105040001 has 8 divisors (see below), whose sum is σ = 2275719680. Its totient is φ = 1940349168.
The previous prime is 2105039987. The next prime is 2105040013. The reversal of 2105040001 is 1000405012.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2105040001 - 213 = 2105031809 is a prime.
It is a super-3 number, since 3×21050400013 (a number of 29 digits) contains 333 as substring.
It is not an unprimeable number, because it can be changed into a prime (2105040101) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1496481 + ... + 1497886.
It is an arithmetic number, because the mean of its divisors is an integer number (284464960).
Almost surely, 22105040001 is an apocalyptic number.
It is an amenable number.
2105040001 is a deficient number, since it is larger than the sum of its proper divisors (170679679).
2105040001 is a wasteful number, since it uses less digits than its factorization.
2105040001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2994423.
The product of its (nonzero) digits is 40, while the sum is 13.
The square root of 2105040001 is about 45880.7149137849. The cubic root of 2105040001 is about 1281.6028100428.
Adding to 2105040001 its reverse (1000405012), we get a palindrome (3105445013).
The spelling of 2105040001 in words is "two billion, one hundred five million, forty thousand, one".
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