Base | Representation |
---|---|
bin | 11011101000000… |
… | …10010100111110 |
3 | 121011001212010212 |
4 | 31310002110332 |
5 | 433311313310 |
6 | 34555032422 |
7 | 5512540622 |
oct | 1564022476 |
9 | 534055125 |
10 | 231744830 |
11 | 1098a5359 |
12 | 6573b712 |
13 | 39020525 |
14 | 22ac7182 |
15 | 1552a205 |
hex | dd0253e |
231744830 has 16 divisors (see below), whose sum is σ = 417353904. Its totient is φ = 92650560.
The previous prime is 231744811. The next prime is 231744839. The reversal of 231744830 is 38447132.
231744830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (231744839) 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, 20045 + ... + 29415.
It is an arithmetic number, because the mean of its divisors is an integer number (26084619).
Almost surely, 2231744830 is an apocalyptic number.
231744830 is a deficient number, since it is larger than the sum of its proper divisors (185609074).
231744830 is a wasteful number, since it uses less digits than its factorization.
231744830 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11851.
The product of its (nonzero) digits is 16128, while the sum is 32.
The square root of 231744830 is about 15223.1675416124. The cubic root of 231744830 is about 614.2380057465.
The spelling of 231744830 in words is "two hundred thirty-one million, seven hundred forty-four thousand, eight hundred thirty".
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