Base | Representation |
---|---|
bin | 10010101000101100… |
… | …100011010001101100 |
3 | 1220122112120102200200 |
4 | 102220230203101230 |
5 | 311440042322200 |
6 | 13105330153500 |
7 | 1305604134102 |
oct | 225054432154 |
9 | 56575512620 |
10 | 20010120300 |
11 | 8539211605 |
12 | 3a65422890 |
13 | 1b6b80c191 |
14 | d7b79bc72 |
15 | 7c1ab9800 |
hex | 4a8b2346c |
20010120300 has 324 divisors, whose sum is σ = 67584502440. Its totient is φ = 4934615040.
The previous prime is 20010120289. The next prime is 20010120307. The reversal of 20010120300 is 302101002.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is not an unprimeable number, because it can be changed into a prime (20010120307) by changing a digit.
It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 143957631 + ... + 143957769.
Almost surely, 220010120300 is an apocalyptic number.
20010120300 is a gapful number since it is divisible by the number (20) 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 20010120300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33792251220).
20010120300 is an abundant number, since it is smaller than the sum of its proper divisors (47574382140).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20010120300 is a wasteful number, since it uses less digits than its factorization.
20010120300 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 370 (or 263 counting only the distinct ones).
The product of its (nonzero) digits is 12, while the sum is 9.
Adding to 20010120300 its reverse (302101002), we get a palindrome (20312221302).
The spelling of 20010120300 in words is "twenty billion, ten million, one hundred twenty thousand, three hundred".
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