Base | Representation |
---|---|
bin | 10010101001111101… |
… | …010110001011100001 |
3 | 1220201000102111012220 |
4 | 102221331112023201 |
5 | 312011003102241 |
6 | 13111404141253 |
7 | 1306252146324 |
oct | 225175261341 |
9 | 56630374186 |
10 | 20031300321 |
11 | 854a16845a |
12 | 3a70537829 |
13 | 1b73016736 |
14 | d805127bb |
15 | 7c38a0166 |
hex | 4a9f562e1 |
20031300321 has 8 divisors (see below), whose sum is σ = 26741417760. Its totient is φ = 13337691552.
The previous prime is 20031300281. The next prime is 20031300329. The reversal of 20031300321 is 12300313002.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20031300321 - 26 = 20031300257 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 20031300321.
It is not an unprimeable number, because it can be changed into a prime (20031300329) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4124335 + ... + 4129188.
It is an arithmetic number, because the mean of its divisors is an integer number (3342677220).
Almost surely, 220031300321 is an apocalyptic number.
It is an amenable number.
20031300321 is a deficient number, since it is larger than the sum of its proper divisors (6710117439).
20031300321 is an equidigital number, since it uses as much as digits as its factorization.
20031300321 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8254335.
The product of its (nonzero) digits is 108, while the sum is 15.
Adding to 20031300321 its reverse (12300313002), we get a palindrome (32331613323).
The spelling of 20031300321 in words is "twenty billion, thirty-one million, three hundred thousand, three hundred twenty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.081 sec. • engine limits •