Base | Representation |
---|---|
bin | 11011011011110… |
… | …11110001010111 |
3 | 121001001120202000 |
4 | 31231323301113 |
5 | 432404120421 |
6 | 34500450343 |
7 | 5463126000 |
oct | 1555736127 |
9 | 531046660 |
10 | 230145111 |
11 | 108a02479 |
12 | 650a99b3 |
13 | 388b0351 |
14 | 227cc1a7 |
15 | 15311226 |
hex | db7bc57 |
230145111 has 32 divisors (see below), whose sum is σ = 397632000. Its totient is φ = 131506200.
The previous prime is 230145109. The next prime is 230145127. The reversal of 230145111 is 111541032.
It is not a de Polignac number, because 230145111 - 21 = 230145109 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230145101) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3165 + ... + 21686.
It is an arithmetic number, because the mean of its divisors is an integer number (12426000).
Almost surely, 2230145111 is an apocalyptic number.
230145111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
230145111 is a deficient number, since it is larger than the sum of its proper divisors (167486889).
230145111 is an equidigital number, since it uses as much as digits as its factorization.
230145111 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 24881 (or 24861 counting only the distinct ones).
The product of its (nonzero) digits is 120, while the sum is 18.
The square root of 230145111 is about 15170.5343017311. The cubic root of 230145111 is about 612.8213932326.
Adding to 230145111 its reverse (111541032), we get a palindrome (341686143).
The spelling of 230145111 in words is "two hundred thirty million, one hundred forty-five thousand, one hundred eleven".
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