Base | Representation |
---|---|
bin | 101011110111… |
… | …1010111101011 |
3 | 1121021112211102 |
4 | 1113233113223 |
5 | 21342004210 |
6 | 2140552015 |
7 | 366334004 |
oct | 127572753 |
9 | 47245742 |
10 | 23000555 |
11 | 11a8a726 |
12 | 785260b |
13 | 49c40c6 |
14 | 30aa1ab |
15 | 2044ea5 |
hex | 15ef5eb |
23000555 has 8 divisors (see below), whose sum is σ = 27628944. Its totient is φ = 18381600.
The previous prime is 23000533. The next prime is 23000557. The reversal of 23000555 is 55500032.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 23000555 - 26 = 23000491 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (23000557) 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, 5240 + ... + 8570.
It is an arithmetic number, because the mean of its divisors is an integer number (3453618).
Almost surely, 223000555 is an apocalyptic number.
23000555 is a deficient number, since it is larger than the sum of its proper divisors (4628389).
23000555 is a wasteful number, since it uses less digits than its factorization.
23000555 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4717.
The product of its (nonzero) digits is 750, while the sum is 20.
The square root of 23000555 is about 4795.8893857136. The cubic root of 23000555 is about 284.3889854250.
Adding to 23000555 its reverse (55500032), we get a palindrome (78500587).
The spelling of 23000555 in words is "twenty-three million, five hundred fifty-five", and thus it is an aban number.
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