Base | Representation |
---|---|
bin | 10010111010110000… |
… | …000001011100110101 |
3 | 1221102122112100020222 |
4 | 102322300001130311 |
5 | 313100113121323 |
6 | 13155350304125 |
7 | 1316242552163 |
oct | 227260013465 |
9 | 57378470228 |
10 | 20313020213 |
11 | 8684196812 |
12 | 3b2a958045 |
13 | 1bb94b3bb5 |
14 | da9ac8233 |
15 | 7dd49c9c8 |
hex | 4bac01735 |
20313020213 has 16 divisors (see below), whose sum is σ = 21576023040. Its totient is φ = 19069830000.
The previous prime is 20313020107. The next prime is 20313020237. The reversal of 20313020213 is 31202031302.
It is a cyclic number.
It is not a de Polignac number, because 20313020213 - 226 = 20245911349 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 20313020191 and 20313020200.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20313020293) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1863806 + ... + 1874672.
It is an arithmetic number, because the mean of its divisors is an integer number (1348501440).
Almost surely, 220313020213 is an apocalyptic number.
It is an amenable number.
20313020213 is a deficient number, since it is larger than the sum of its proper divisors (1263002827).
20313020213 is a wasteful number, since it uses less digits than its factorization.
20313020213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11768.
The product of its (nonzero) digits is 216, while the sum is 17.
Adding to 20313020213 its reverse (31202031302), we get a palindrome (51515051515).
The spelling of 20313020213 in words is "twenty billion, three hundred thirteen million, twenty thousand, two hundred thirteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.075 sec. • engine limits •