Base | Representation |
---|---|
bin | 10101110100001000… |
… | …000111001100010000 |
3 | 2020110101201210022022 |
4 | 111310020013030100 |
5 | 340432304321034 |
6 | 14432130431012 |
7 | 1456306144004 |
oct | 256410071420 |
9 | 66411653268 |
10 | 23423120144 |
11 | 9a2a816936 |
12 | 4658432468 |
13 | 2293937108 |
14 | 11c2b90704 |
15 | 92153db2e |
hex | 574207310 |
23423120144 has 40 divisors (see below), whose sum is σ = 47489853312. Its totient is φ = 11170565120.
The previous prime is 23423120141. The next prime is 23423120179. The reversal of 23423120144 is 44102132432.
It is not an unprimeable number, because it can be changed into a prime (23423120141) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39749 + ... + 220059.
Almost surely, 223423120144 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 23423120144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23744926656).
23423120144 is an abundant number, since it is smaller than the sum of its proper divisors (24066733168).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23423120144 is a wasteful number, since it uses less digits than its factorization.
23423120144 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 180695 (or 180689 counting only the distinct ones).
The product of its (nonzero) digits is 4608, while the sum is 26.
Adding to 23423120144 its reverse (44102132432), we get a palindrome (67525252576).
The spelling of 23423120144 in words is "twenty-three billion, four hundred twenty-three million, one hundred twenty thousand, one hundred forty-four".
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