Base | Representation |
---|---|
bin | 10010101111011011… |
… | …001010000110001110 |
3 | 1220221101222101012212 |
4 | 102233123022012032 |
5 | 312202442014410 |
6 | 13124441430422 |
7 | 1311444455033 |
oct | 225733120616 |
9 | 56841871185 |
10 | 20123001230 |
11 | 8596a00732 |
12 | 3a9719b412 |
13 | 1b89012927 |
14 | d8c78338a |
15 | 7cb965b05 |
hex | 4af6ca18e |
20123001230 has 8 divisors (see below), whose sum is σ = 36221402232. Its totient is φ = 8049200488.
The previous prime is 20123001221. The next prime is 20123001233. The reversal of 20123001230 is 3210032102.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20123001233) 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, 1006150052 + ... + 1006150071.
It is an arithmetic number, because the mean of its divisors is an integer number (4527675279).
Almost surely, 220123001230 is an apocalyptic number.
20123001230 is a deficient number, since it is larger than the sum of its proper divisors (16098401002).
20123001230 is a wasteful number, since it uses less digits than its factorization.
20123001230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2012300130.
The product of its (nonzero) digits is 72, while the sum is 14.
Adding to 20123001230 its reverse (3210032102), we get a palindrome (23333033332).
The spelling of 20123001230 in words is "twenty billion, one hundred twenty-three million, one thousand, two hundred thirty".
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