Base | Representation |
---|---|
bin | 11100001001010001… |
… | …110000010000011011 |
3 | 2220000010001101221101 |
4 | 130021101300100123 |
5 | 443342411420443 |
6 | 21514424252231 |
7 | 2116614222055 |
oct | 341121602033 |
9 | 86003041841 |
10 | 30220420123 |
11 | 118a8703a23 |
12 | 5a34911077 |
13 | 2b07c4baca |
14 | 16698248d5 |
15 | bbd16884d |
hex | 70947041b |
30220420123 has 8 divisors (see below), whose sum is σ = 30310297920. Its totient is φ = 30130584000.
The previous prime is 30220420093. The next prime is 30220420127. The reversal of 30220420123 is 32102402203.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30220420123 - 29 = 30220419611 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 30220420123.
It is not an unprimeable number, because it can be changed into a prime (30220420127) 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, 2011383 + ... + 2026351.
It is an arithmetic number, because the mean of its divisors is an integer number (3788787240).
Almost surely, 230220420123 is an apocalyptic number.
30220420123 is a deficient number, since it is larger than the sum of its proper divisors (89877797).
30220420123 is a wasteful number, since it uses less digits than its factorization.
30220420123 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20837.
The product of its (nonzero) digits is 576, while the sum is 19.
Adding to 30220420123 its reverse (32102402203), we get a palindrome (62322822326).
The spelling of 30220420123 in words is "thirty billion, two hundred twenty million, four hundred twenty thousand, one hundred twenty-three".
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