Base | Representation |
---|---|
bin | 1000000110100100… |
… | …0010101111101010 |
3 | 12121120200110112200 |
4 | 2001221002233222 |
5 | 13423301120020 |
6 | 555454121030 |
7 | 104620236132 |
oct | 20151025752 |
9 | 5546613480 |
10 | 2175020010 |
11 | a168187a9 |
12 | 5084b0176 |
13 | 2887c65b7 |
14 | 168c17ac2 |
15 | cae35590 |
hex | 81a42bea |
2175020010 has 96 divisors (see below), whose sum is σ = 5885090640. Its totient is φ = 556652544.
The previous prime is 2175019993. The next prime is 2175020011. The reversal of 2175020010 is 100205712.
It can be written as a sum of positive squares in 8 ways, for example, as 961682121 + 1213337889 = 31011^2 + 34833^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is not an unprimeable number, because it can be changed into a prime (2175020011) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 449122 + ... + 453938.
Almost surely, 22175020010 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2175020010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2942545320).
2175020010 is an abundant number, since it is smaller than the sum of its proper divisors (3710070630).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2175020010 is a wasteful number, since it uses less digits than its factorization.
2175020010 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5032 (or 5029 counting only the distinct ones).
The product of its (nonzero) digits is 140, while the sum is 18.
The square root of 2175020010 is about 46637.1097946689. The cubic root of 2175020010 is about 1295.6501577726.
Adding to 2175020010 its reverse (100205712), we get a palindrome (2275225722).
The spelling of 2175020010 in words is "two billion, one hundred seventy-five million, twenty thousand, ten".
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