Base | Representation |
---|---|
bin | 10011000000000101… |
… | …00010000101000101 |
3 | 222022221101020000020 |
4 | 21200002202011011 |
5 | 131343002224310 |
6 | 4404131205353 |
7 | 510536602353 |
oct | 114002420505 |
9 | 28287336006 |
10 | 10201211205 |
11 | 4365354a69 |
12 | 1b88446859 |
13 | c675a9b63 |
14 | 6cab7c7d3 |
15 | 3ea8a6170 |
hex | 2600a2145 |
10201211205 has 16 divisors (see below), whose sum is σ = 16324267200. Its totient is φ = 5439869568.
The previous prime is 10201211203. The next prime is 10201211213. The reversal of 10201211205 is 50211210201.
It is not a de Polignac number, because 10201211205 - 21 = 10201211203 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10201211203) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69321 + ... + 158769.
It is an arithmetic number, because the mean of its divisors is an integer number (1020266700).
Almost surely, 210201211205 is an apocalyptic number.
10201211205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
10201211205 is a deficient number, since it is larger than the sum of its proper divisors (6123055995).
10201211205 is an equidigital number, since it uses as much as digits as its factorization.
10201211205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 97060.
The product of its (nonzero) digits is 40, while the sum is 15.
Adding to 10201211205 its reverse (50211210201), we get a palindrome (60412421406).
The spelling of 10201211205 in words is "ten billion, two hundred one million, two hundred eleven thousand, two hundred five".
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