Base | Representation |
---|---|
bin | 101111100110011011… |
… | …0001101110011101001 |
3 | 100202211221212110012212 |
4 | 1133030312031303221 |
5 | 3133322034342301 |
6 | 114543143014505 |
7 | 10246063160510 |
oct | 1371466156351 |
9 | 322757773185 |
10 | 102221012201 |
11 | 3a396107480 |
12 | 1798973a435 |
13 | 98409ba149 |
14 | 4d3a00b677 |
15 | 29d42074bb |
hex | 17ccd8dce9 |
102221012201 has 16 divisors (see below), whose sum is σ = 127451470848. Its totient is φ = 79648304400.
The previous prime is 102221012161. The next prime is 102221012203. The reversal of 102221012201 is 102210122201.
It is not a de Polignac number, because 102221012201 - 222 = 102216817897 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (102221012203) 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, 2355566 + ... + 2398568.
It is an arithmetic number, because the mean of its divisors is an integer number (7965716928).
Almost surely, 2102221012201 is an apocalyptic number.
102221012201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
102221012201 is a deficient number, since it is larger than the sum of its proper divisors (25230458647).
102221012201 is a wasteful number, since it uses less digits than its factorization.
102221012201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 73892.
The product of its (nonzero) digits is 32, while the sum is 14.
Adding to 102221012201 its reverse (102210122201), we get a palindrome (204431134402).
Subtracting from 102221012201 its reverse (102210122201), we obtain a square (10890000 = 33002).
The spelling of 102221012201 in words is "one hundred two billion, two hundred twenty-one million, twelve thousand, two hundred one".
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