Base | Representation |
---|---|
bin | 100110100101… |
… | …1001100000000 |
3 | 1102001211121001 |
4 | 1031023030000 |
5 | 20134342122 |
6 | 2001341344 |
7 | 333650152 |
oct | 115131400 |
9 | 42054531 |
10 | 20230912 |
11 | 10468869 |
12 | 6937854 |
13 | 4264570 |
14 | 2988ad2 |
15 | 1b99527 |
hex | 134b300 |
20230912 has 36 divisors (see below), whose sum is σ = 43496320. Its totient is φ = 9335808.
The previous prime is 20230883. The next prime is 20230919. The reversal of 20230912 is 21903202.
It is a happy number.
It is a self number, because there is not a number n which added to its sum of digits gives 20230912.
It is not an unprimeable number, because it can be changed into a prime (20230919) 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, 289 + ... + 6367.
Almost surely, 220230912 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20230912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21748160).
20230912 is an abundant number, since it is smaller than the sum of its proper divisors (23265408).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20230912 is an equidigital number, since it uses as much as digits as its factorization.
20230912 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6108 (or 6094 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 19.
The square root of 20230912 is about 4497.8786110788. The cubic root of 20230912 is about 272.4824195375.
The spelling of 20230912 in words is "twenty million, two hundred thirty thousand, nine hundred twelve".
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