Base | Representation |
---|---|
bin | 11011011110001… |
… | …11101000010110 |
3 | 121001122100222010 |
4 | 31233013220112 |
5 | 432444041310 |
6 | 34511245050 |
7 | 5465561613 |
oct | 1557075026 |
9 | 531570863 |
10 | 230455830 |
11 | 1090a4970 |
12 | 65219786 |
13 | 3898b8c7 |
14 | 2286d50a |
15 | 15373320 |
hex | dbc7a16 |
230455830 has 64 divisors (see below), whose sum is σ = 605553408. Its totient is φ = 55666560.
The previous prime is 230455789. The next prime is 230455831. The reversal of 230455830 is 38554032.
230455830 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230455831) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103509 + ... + 105711.
It is an arithmetic number, because the mean of its divisors is an integer number (9461772).
Almost surely, 2230455830 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 230455830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302776704).
230455830 is an abundant number, since it is smaller than the sum of its proper divisors (375097578).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
230455830 is a wasteful number, since it uses less digits than its factorization.
230455830 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2541.
The product of its (nonzero) digits is 14400, while the sum is 30.
The square root of 230455830 is about 15180.7717195141. The cubic root of 230455830 is about 613.0970593412.
The spelling of 230455830 in words is "two hundred thirty million, four hundred fifty-five thousand, eight hundred thirty".
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