Base | Representation |
---|---|
bin | 11011011011110… |
… | …00100100100101 |
3 | 121001000220202121 |
4 | 31231320210211 |
5 | 432403211010 |
6 | 34500305541 |
7 | 5463042535 |
oct | 1555704445 |
9 | 531026677 |
10 | 230132005 |
11 | 1089a3644 |
12 | 650a22b1 |
13 | 388a73ac |
14 | 227c74c5 |
15 | 1530c3da |
hex | db78925 |
230132005 has 8 divisors (see below), whose sum is σ = 276290424. Its totient is φ = 184017600.
The previous prime is 230131981. The next prime is 230132093. The reversal of 230132005 is 500231032.
It can be written as a sum of positive squares in 4 ways, for example, as 39526369 + 190605636 = 6287^2 + 13806^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 230132005 - 215 = 230099237 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 230132005.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1875 + ... + 21535.
It is an arithmetic number, because the mean of its divisors is an integer number (34536303).
Almost surely, 2230132005 is an apocalyptic number.
It is an amenable number.
230132005 is a deficient number, since it is larger than the sum of its proper divisors (46158419).
230132005 is a wasteful number, since it uses less digits than its factorization.
230132005 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22007.
The product of its (nonzero) digits is 180, while the sum is 16.
The square root of 230132005 is about 15170.1023397998. The cubic root of 230132005 is about 612.8097602972.
Adding to 230132005 its reverse (500231032), we get a palindrome (730363037).
The spelling of 230132005 in words is "two hundred thirty million, one hundred thirty-two thousand, five".
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