Base | Representation |
---|---|
bin | 11011100100001… |
… | …01100111100111 |
3 | 121010002220110002 |
4 | 31302011213213 |
5 | 433143442043 |
6 | 34540051515 |
7 | 5505312446 |
oct | 1562054747 |
9 | 533086402 |
10 | 231234023 |
11 | 1095865a9 |
12 | 65533b9b |
13 | 38ba1b87 |
14 | 229d2d5d |
15 | 15478bb8 |
hex | dc859e7 |
231234023 has 8 divisors (see below), whose sum is σ = 239457600. Its totient is φ = 223027168.
The previous prime is 231234013. The next prime is 231234041. The reversal of 231234023 is 320432132.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 231234023 - 212 = 231229927 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 231233986 and 231234004.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (231234013) 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, 28373 + ... + 35601.
It is an arithmetic number, because the mean of its divisors is an integer number (29932200).
Almost surely, 2231234023 is an apocalyptic number.
231234023 is a deficient number, since it is larger than the sum of its proper divisors (8223577).
231234023 is a wasteful number, since it uses less digits than its factorization.
231234023 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8361.
The product of its (nonzero) digits is 864, while the sum is 20.
The square root of 231234023 is about 15206.3809961476. The cubic root of 231234023 is about 613.7863770000.
Adding to 231234023 its reverse (320432132), we get a palindrome (551666155).
The spelling of 231234023 in words is "two hundred thirty-one million, two hundred thirty-four thousand, twenty-three".
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