| Base | Representation |
|---|---|
| bin | 10010111111111100… |
| … | …10111101110011100 |
| 3 | 222022212022210110101 |
| 4 | 21133332113232130 |
| 5 | 131342212321340 |
| 6 | 4404051550444 |
| 7 | 510524406553 |
| oct | 113776275634 |
| 9 | 28285283411 |
| 10 | 10200120220 |
| 11 | 436477a324 |
| 12 | 1b87bbb424 |
| 13 | c672b73c4 |
| 14 | 6ca976d9a |
| 15 | 3ea73cc9a |
| hex | 25ff97b9c |
10200120220 has 96 divisors (see below), whose sum is σ = 22230464256. Its totient is φ = 3928780800.
The previous prime is 10200120199. The next prime is 10200120223. The reversal of 10200120220 is 2202100201.
It is a Harshad number since it is a multiple of its sum of digits (10).
It is a junction number, because it is equal to n+sod(n) for n = 10200120197 and 10200120206.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10200120223) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37638685 + ... + 37638955.
It is an arithmetic number, because the mean of its divisors is an integer number (231567336).
Almost surely, 210200120220 is an apocalyptic number.
10200120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 10200120220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11115232128).
10200120220 is an abundant number, since it is smaller than the sum of its proper divisors (12030344036).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
10200120220 is a wasteful number, since it uses less digits than its factorization.
10200120220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 751 (or 749 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 10.
Adding to 10200120220 its reverse (2202100201), we get a palindrome (12402220421).
It can be divided in two parts, 102001 and 20220, that added together give a palindrome (122221).
The spelling of 10200120220 in words is "ten billion, two hundred million, one hundred twenty thousand, two hundred twenty".
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