| Base | Representation |
|---|---|
| bin | 11011100110001… |
| … | …11010101100000 |
| 3 | 121010121120200121 |
| 4 | 31303013111200 |
| 5 | 433231100300 |
| 6 | 34545530024 |
| 7 | 5510513305 |
| oct | 1563072540 |
| 9 | 533546617 |
| 10 | 231503200 |
| 11 | 10974a865 |
| 12 | 65643914 |
| 13 | 38c67556 |
| 14 | 22a630ac |
| 15 | 154cd81a |
| hex | dcc7560 |
231503200 has 108 divisors (see below), whose sum is σ = 581845572. Its totient is φ = 89939200.
The previous prime is 231503183. The next prime is 231503203. The reversal of 231503200 is 2305132.
231503200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×2315032002 = 107187463220480000, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (16).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (231503203) by changing a digit.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1767135 + ... + 1767265.
It is an arithmetic number, because the mean of its divisors is an integer number (5387459).
Almost surely, 2231503200 is an apocalyptic number.
231503200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 231503200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290922786).
231503200 is an abundant number, since it is smaller than the sum of its proper divisors (350342372).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
231503200 is a wasteful number, since it uses less digits than its factorization.
231503200 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 245 (or 185 counting only the distinct ones).
The product of its (nonzero) digits is 180, while the sum is 16.
The square root of 231503200 is about 15215.2292128643. The cubic root of 231503200 is about 614.0244519824.
Adding to 231503200 its reverse (2305132), we get a palindrome (233808332).
The spelling of 231503200 in words is "two hundred thirty-one million, five hundred three thousand, two hundred".
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