Base | Representation |
---|---|
bin | 10010110100100111… |
… | …110111110001100010 |
3 | 1221011111002120001111 |
4 | 102310213313301202 |
5 | 312342304021010 |
6 | 13141235053534 |
7 | 1313554015402 |
oct | 226447676142 |
9 | 57144076044 |
10 | 20210220130 |
11 | 8631162571 |
12 | 3b004412aa |
13 | 1ba10cca49 |
14 | d9a1a8802 |
15 | 7d444358a |
hex | 4b49f7c62 |
20210220130 has 8 divisors (see below), whose sum is σ = 36378396252. Its totient is φ = 8084088048.
The previous prime is 20210220119. The next prime is 20210220131. The reversal of 20210220130 is 3102201202.
It can be written as a sum of positive squares in 2 ways, for example, as 20070105561 + 140114569 = 141669^2 + 11837^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a self number, because there is not a number n which added to its sum of digits gives 20210220130.
It is not an unprimeable number, because it can be changed into a prime (20210220131) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010510997 + ... + 1010511016.
Almost surely, 220210220130 is an apocalyptic number.
20210220130 is a deficient number, since it is larger than the sum of its proper divisors (16168176122).
20210220130 is a wasteful number, since it uses less digits than its factorization.
20210220130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2021022020.
The product of its (nonzero) digits is 48, while the sum is 13.
Adding to 20210220130 its reverse (3102201202), we get a palindrome (23312421332).
The spelling of 20210220130 in words is "twenty billion, two hundred ten million, two hundred twenty thousand, one hundred thirty".
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