Base | Representation |
---|---|
bin | 10010101000101101… |
… | …010100010110010101 |
3 | 1220122112221122102011 |
4 | 102220231110112111 |
5 | 311440120240201 |
6 | 13105334344221 |
7 | 1305605632105 |
oct | 225055242625 |
9 | 56575848364 |
10 | 20010321301 |
11 | 8539339623 |
12 | 3a654bb071 |
13 | 1b6b87c809 |
14 | d7b811205 |
15 | 7c1b09151 |
hex | 4a8b54595 |
20010321301 has 4 divisors (see below), whose sum is σ = 20029041100. Its totient is φ = 19991601504.
The previous prime is 20010321269. The next prime is 20010321311. The reversal of 20010321301 is 10312301002.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10312301002 = 2 ⋅5156150501.
It can be written as a sum of positive squares in 2 ways, for example, as 6507648900 + 13502672401 = 80670^2 + 116201^2 .
It is a cyclic number.
It is not a de Polignac number, because 20010321301 - 25 = 20010321269 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 (20010321311) 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, 9358296 + ... + 9360433.
It is an arithmetic number, because the mean of its divisors is an integer number (5007260275).
Almost surely, 220010321301 is an apocalyptic number.
It is an amenable number.
20010321301 is a deficient number, since it is larger than the sum of its proper divisors (18719799).
20010321301 is a wasteful number, since it uses less digits than its factorization.
20010321301 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18719798.
The product of its (nonzero) digits is 36, while the sum is 13.
Adding to 20010321301 its reverse (10312301002), we get a palindrome (30322622303).
The spelling of 20010321301 in words is "twenty billion, ten million, three hundred twenty-one thousand, three hundred one".
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