Base | Representation |
---|---|
bin | 101111100110001000… |
… | …0110111011000010100 |
3 | 100202211021110000020020 |
4 | 1133030100313120110 |
5 | 3133312033033022 |
6 | 114542153105140 |
7 | 10245614020665 |
oct | 1371420673024 |
9 | 322737400206 |
10 | 102211221012 |
11 | 3a39062a18a |
12 | 179863b81b0 |
13 | 983b96c644 |
14 | 4d389bd36c |
15 | 29d342135c |
hex | 17cc437614 |
102211221012 has 48 divisors (see below), whose sum is σ = 255781834560. Its totient is φ = 31668219648.
The previous prime is 102211221011. The next prime is 102211221041. The reversal of 102211221012 is 210122112201.
It is a junction number, because it is equal to n+sod(n) for n = 102211220982 and 102211221000.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (102211221011) 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, 4217113 + ... + 4241280.
It is an arithmetic number, because the mean of its divisors is an integer number (5328788220).
Almost surely, 2102211221012 is an apocalyptic number.
102211221012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
102211221012 is an abundant number, since it is smaller than the sum of its proper divisors (153570613548).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
102211221012 is a wasteful number, since it uses less digits than its factorization.
102211221012 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8458472 (or 8458470 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 15.
Adding to 102211221012 its reverse (210122112201), we get a palindrome (312333333213).
The spelling of 102211221012 in words is "one hundred two billion, two hundred eleven million, two hundred twenty-one thousand, twelve".
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