Base | Representation |
---|---|
bin | 11101000001101… |
… | …11110101001000 |
3 | 121222011222220000 |
4 | 32200313311020 |
5 | 444313421222 |
6 | 40055003000 |
7 | 6014462421 |
oct | 1640676510 |
9 | 558158800 |
10 | 243498312 |
11 | 1154a2982 |
12 | 69669460 |
13 | 3b5a7255 |
14 | 244a6648 |
15 | 1659c9ac |
hex | e837d48 |
243498312 has 60 divisors (see below), whose sum is σ = 683135145. Its totient is φ = 81033696.
The previous prime is 243498247. The next prime is 243498317. The reversal of 243498312 is 213894342.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
243498312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 2 ways, for example, as 135629316 + 107868996 = 11646^2 + 10386^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=11034.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a nude number because it is divisible by every one of its digits.
It is not an unprimeable number, because it can be changed into a prime (243498317) by changing a digit.
It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 396918 + ... + 397530.
Almost surely, 2243498312 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 243498312
243498312 is an abundant number, since it is smaller than the sum of its proper divisors (439636833).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
243498312 is an frugal number, since it uses more digits than its factorization.
243498312 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1244 (or 618 counting only the distinct ones).
The product of its digits is 41472, while the sum is 36.
The square root of 243498312 is about 15604.4324472247. The cubic root of 243498312 is about 624.4514115287.
Multiplying 243498312 by its product of digits (41472), we get a square (10098361995264 = 31777922).
The spelling of 243498312 in words is "two hundred forty-three million, four hundred ninety-eight thousand, three hundred twelve".
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