Base | Representation |
---|---|
bin | 10010101110001111… |
… | …001111011110001001 |
3 | 1220220000112022021021 |
4 | 102232033033132021 |
5 | 312132343202142 |
6 | 13122451112441 |
7 | 1311113350600 |
oct | 225617173611 |
9 | 56800468237 |
10 | 20103100297 |
11 | 8586748885 |
12 | 3a905a2721 |
13 | 1b84b65627 |
14 | d89c82a37 |
15 | 7c9d34267 |
hex | 4ae3cf789 |
20103100297 has 24 divisors (see below), whose sum is σ = 24643732032. Its totient is φ = 16318764000.
The previous prime is 20103100289. The next prime is 20103100313. The reversal of 20103100297 is 79200130102.
It is not a de Polignac number, because 20103100297 - 23 = 20103100289 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (20103190297) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25522 + ... + 202132.
It is an arithmetic number, because the mean of its divisors is an integer number (1026822168).
Almost surely, 220103100297 is an apocalyptic number.
It is an amenable number.
20103100297 is a deficient number, since it is larger than the sum of its proper divisors (4540631735).
20103100297 is a wasteful number, since it uses less digits than its factorization.
20103100297 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 176749 (or 176742 counting only the distinct ones).
The product of its (nonzero) digits is 756, while the sum is 25.
Adding to 20103100297 its reverse (79200130102), we get a palindrome (99303230399).
The spelling of 20103100297 in words is "twenty billion, one hundred three million, one hundred thousand, two hundred ninety-seven".
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