Base | Representation |
---|---|
bin | 10010110100001100… |
… | …011010011100010101 |
3 | 1221010222112212012211 |
4 | 102310030122130111 |
5 | 312333433201401 |
6 | 13140420513421 |
7 | 1313435566033 |
oct | 226414323425 |
9 | 57128485184 |
10 | 20203022101 |
11 | 8628096589 |
12 | 3ab9b4b871 |
13 | 1b9c77c662 |
14 | d99253553 |
15 | 7d39c0951 |
hex | 4b431a715 |
20203022101 has 4 divisors (see below), whose sum is σ = 20231121600. Its totient is φ = 20174922604.
The previous prime is 20203022083. The next prime is 20203022111. The reversal of 20203022101 is 10122030202.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 20203022101 - 27 = 20203021973 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20203022111) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14048671 + ... + 14050108.
It is an arithmetic number, because the mean of its divisors is an integer number (5057780400).
Almost surely, 220203022101 is an apocalyptic number.
It is an amenable number.
20203022101 is a deficient number, since it is larger than the sum of its proper divisors (28099499).
20203022101 is an equidigital number, since it uses as much as digits as its factorization.
20203022101 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28099498.
The product of its (nonzero) digits is 48, while the sum is 13.
Adding to 20203022101 its reverse (10122030202), we get a palindrome (30325052303).
It can be divided in two parts, 2020 and 3022101, that added together give a square (3024121 = 17392).
The spelling of 20203022101 in words is "twenty billion, two hundred three million, twenty-two thousand, one hundred one".
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