Base | Representation |
---|---|
bin | 10010111010000010… |
… | …111100011010011101 |
3 | 1221101211021222020011 |
4 | 102322002330122131 |
5 | 313034101444401 |
6 | 13154245123221 |
7 | 1316040244024 |
oct | 227202743235 |
9 | 57354258204 |
10 | 20301203101 |
11 | 8678555403 |
12 | 3b269b9511 |
13 | 1bb6c0721a |
14 | da82cd8bb |
15 | 7dc416451 |
hex | 4ba0bc69d |
20301203101 has 4 divisors (see below), whose sum is σ = 20302003900. Its totient is φ = 20300402304.
The previous prime is 20301203099. The next prime is 20301203107. The reversal of 20301203101 is 10130210302.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10130210302 = 2 ⋅5065105151.
It can be written as a sum of positive squares in 2 ways, for example, as 13589497476 + 6711705625 = 116574^2 + 81925^2 .
It is a cyclic number.
It is not a de Polignac number, because 20301203101 - 21 = 20301203099 is a prime.
It is a super-3 number, since 3×203012031013 (a number of 32 digits) contains 333 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20301203107) 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, 361086 + ... + 413503.
It is an arithmetic number, because the mean of its divisors is an integer number (5075500975).
Almost surely, 220301203101 is an apocalyptic number.
It is an amenable number.
20301203101 is a deficient number, since it is larger than the sum of its proper divisors (800799).
20301203101 is an equidigital number, since it uses as much as digits as its factorization.
20301203101 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 800798.
The product of its (nonzero) digits is 36, while the sum is 13.
Adding to 20301203101 its reverse (10130210302), we get a palindrome (30431413403).
The spelling of 20301203101 in words is "twenty billion, three hundred one million, two hundred three thousand, one hundred one".
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