Base | Representation |
---|---|
bin | 111110101001011… |
… | …1000011111010001 |
3 | 12102111110211210111 |
4 | 1331102320133101 |
5 | 13301114230334 |
6 | 544331201321 |
7 | 103043400112 |
oct | 17522703721 |
9 | 5374424714 |
10 | 2102101969 |
11 | 989644360 |
12 | 4a7ba6241 |
13 | 276675826 |
14 | 15d276209 |
15 | c4830064 |
hex | 7d4b87d1 |
2102101969 has 8 divisors (see below), whose sum is σ = 2428096608. Its totient is φ = 1798589760.
The previous prime is 2102101961. The next prime is 2102102017. The reversal of 2102101969 is 9691012012.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2102101969 - 23 = 2102101961 is a prime.
It is a super-2 number, since 2×21021019692 = 8837665376147353922, which contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 2102101969.
It is not an unprimeable number, because it can be changed into a prime (2102101961) 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, 5620407 + ... + 5620780.
It is an arithmetic number, because the mean of its divisors is an integer number (303512076).
Almost surely, 22102101969 is an apocalyptic number.
It is an amenable number.
2102101969 is a deficient number, since it is larger than the sum of its proper divisors (325994639).
2102101969 is a wasteful number, since it uses less digits than its factorization.
2102101969 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11241215.
The product of its (nonzero) digits is 1944, while the sum is 31.
The square root of 2102101969 is about 45848.6855754884. The cubic root of 2102101969 is about 1281.0062824667.
The spelling of 2102101969 in words is "two billion, one hundred two million, one hundred one thousand, nine hundred sixty-nine".
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