Base | Representation |
---|---|
bin | 10001011101101011100… |
… | …010100100100001111100 |
3 | 11020201200001001201200000 |
4 | 101131223202210201330 |
5 | 124130301111201340 |
6 | 2315152434034300 |
7 | 152463412353300 |
oct | 21355342444174 |
9 | 4221601051600 |
10 | 1200100100220 |
11 | 422a6124694a |
12 | 174707118990 |
13 | 89227264cc8 |
14 | 42129943d00 |
15 | 2133d8aed30 |
hex | 1176b8a487c |
1200100100220 has 432 divisors, whose sum is σ = 4399176364128. Its totient is φ = 273827796480.
The previous prime is 1200100100189. The next prime is 1200100100293. The reversal of 1200100100220 is 220010010021.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 145975710 + ... + 145983930.
Almost surely, 21200100100220 is an apocalyptic number.
1200100100220 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 1200100100220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2199588182064).
1200100100220 is an abundant number, since it is smaller than the sum of its proper divisors (3199076263908).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1200100100220 is a wasteful number, since it uses less digits than its factorization.
1200100100220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8872 (or 8851 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 9.
Adding to 1200100100220 its reverse (220010010021), we get a palindrome (1420110110241).
The spelling of 1200100100220 in words is "one trillion, two hundred billion, one hundred million, one hundred thousand, two hundred twenty".
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