Base | Representation |
---|---|
bin | 10010110100001101… |
… | …001010110011101001 |
3 | 1221010222220220221212 |
4 | 102310031022303221 |
5 | 312334011021301 |
6 | 13140425042505 |
7 | 1313440352423 |
oct | 226415126351 |
9 | 57128826855 |
10 | 20203220201 |
11 | 86282113aa |
12 | 3aba026435 |
13 | 1b9c81b888 |
14 | d992a5813 |
15 | 7d3a0e4bb |
hex | 4b434ace9 |
20203220201 has 16 divisors (see below), whose sum is σ = 21437803200. Its totient is φ = 18986384448.
The previous prime is 20203220179. The next prime is 20203220269. The reversal of 20203220201 is 10202230202.
It is a de Polignac number, because none of the positive numbers 2k-20203220201 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (20203220281) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1196846 + ... + 1213608.
It is an arithmetic number, because the mean of its divisors is an integer number (1339862700).
Almost surely, 220203220201 is an apocalyptic number.
It is an amenable number.
20203220201 is a deficient number, since it is larger than the sum of its proper divisors (1234582999).
20203220201 is a wasteful number, since it uses less digits than its factorization.
20203220201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17288.
The product of its (nonzero) digits is 96, while the sum is 14.
Adding to 20203220201 its reverse (10202230202), we get a palindrome (30405450403).
The spelling of 20203220201 in words is "twenty billion, two hundred three million, two hundred twenty thousand, two hundred one".
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