Base | Representation |
---|---|
bin | 101011111011… |
… | …0100101101000 |
3 | 1121100001101102 |
4 | 1113312211220 |
5 | 21343430440 |
6 | 2141340532 |
7 | 366516131 |
oct | 127664550 |
9 | 47301342 |
10 | 23030120 |
11 | 11aaa963 |
12 | 7867748 |
13 | 4a046b9 |
14 | 30b6c88 |
15 | 204db15 |
hex | 15f6968 |
23030120 has 16 divisors (see below), whose sum is σ = 51817860. Its totient is φ = 9212032.
The previous prime is 23030101. The next prime is 23030129. The reversal of 23030120 is 2103032.
It can be written as a sum of positive squares in 2 ways, for example, as 21585316 + 1444804 = 4646^2 + 1202^2 .
It is not an unprimeable number, because it can be changed into a prime (23030129) 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, 287837 + ... + 287916.
Almost surely, 223030120 is an apocalyptic number.
23030120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
23030120 is an abundant number, since it is smaller than the sum of its proper divisors (28787740).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23030120 is a wasteful number, since it uses less digits than its factorization.
23030120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 575764 (or 575760 counting only the distinct ones).
The product of its (nonzero) digits is 36, while the sum is 11.
The square root of 23030120 is about 4798.9707229780. The cubic root of 23030120 is about 284.5107848103.
Adding to 23030120 its reverse (2103032), we get a palindrome (25133152).
The spelling of 23030120 in words is "twenty-three million, thirty thousand, one hundred twenty".
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