Base | Representation |
---|---|
bin | 10010110100001000… |
… | …111110010000001001 |
3 | 1221010220212001001010 |
4 | 102310020332100021 |
5 | 312333220321301 |
6 | 13140345314133 |
7 | 1313425121424 |
oct | 226410762011 |
9 | 57126761033 |
10 | 20202120201 |
11 | 862762aa0a |
12 | 3ab9795949 |
13 | 1b9c524ca3 |
14 | d9909a9bb |
15 | 7d38935d6 |
hex | 4b423e409 |
20202120201 has 8 divisors (see below), whose sum is σ = 26939159584. Its totient is φ = 13466580480.
The previous prime is 20202120181. The next prime is 20202120259. The reversal of 20202120201 is 10202120202.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20202120201 - 26 = 20202120137 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (20202120271) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343096 + ... + 397641.
It is an arithmetic number, because the mean of its divisors is an integer number (3367394948).
Almost surely, 220202120201 is an apocalyptic number.
It is an amenable number.
20202120201 is a deficient number, since it is larger than the sum of its proper divisors (6737039383).
20202120201 is an equidigital number, since it uses as much as digits as its factorization.
20202120201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 749831.
The product of its (nonzero) digits is 32, while the sum is 12.
Adding to 20202120201 its reverse (10202120202), we get a palindrome (30404240403).
Subtracting from 20202120201 its reverse (10202120202), we obtain a palindrome (9999999999).
It can be divided in two parts, 202021 and 20201, that added together give a palindrome (222222).
The spelling of 20202120201 in words is "twenty billion, two hundred two million, one hundred twenty thousand, two hundred one".
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