Base | Representation |
---|---|
bin | 11011011111111… |
… | …00011000100001 |
3 | 121002001100100220 |
4 | 31233330120201 |
5 | 433023000110 |
6 | 34520033253 |
7 | 5500451562 |
oct | 1557743041 |
9 | 532040326 |
10 | 230671905 |
11 | 109232242 |
12 | 65302829 |
13 | 38a36069 |
14 | 228c8169 |
15 | 153b7370 |
hex | dbfc621 |
230671905 has 16 divisors (see below), whose sum is σ = 369705600. Its totient is φ = 122814848.
The previous prime is 230671879. The next prime is 230671921. The reversal of 230671905 is 509176032.
It is a cyclic number.
It is not a de Polignac number, because 230671905 - 26 = 230671841 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3852 + ... + 21821.
It is an arithmetic number, because the mean of its divisors is an integer number (23106600).
Almost surely, 2230671905 is an apocalyptic number.
It is an amenable number.
230671905 is a deficient number, since it is larger than the sum of its proper divisors (139033695).
230671905 is a wasteful number, since it uses less digits than its factorization.
230671905 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26280.
The product of its (nonzero) digits is 11340, while the sum is 33.
The square root of 230671905 is about 15187.8867851983. The cubic root of 230671905 is about 613.2886124122.
The spelling of 230671905 in words is "two hundred thirty million, six hundred seventy-one thousand, nine hundred five".
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