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243380032 = 267543259
BaseRepresentation
bin11101000000110…
…10111101000000
3121221221222122021
432200122331000
5444301130112
640052251224
76013460530
oct1640327500
9557858567
10243380032
11115422025
1269610b14
133b56546c
14244754c0
1516577907
hexe81af40

243380032 has 28 divisors (see below), whose sum is σ = 551952160. Its totient is φ = 104305536.

The previous prime is 243380009. The next prime is 243380047. The reversal of 243380032 is 230083342.

It is a tau number, because it is divible by the number of its divisors (28).

It is a junction number, because it is equal to n+sod(n) for n = 243379979 and 243380006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271182 + ... + 272077.

Almost surely, 2243380032 is an apocalyptic number.

It is an amenable number.

243380032 is an abundant number, since it is smaller than the sum of its proper divisors (308572128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243380032 is an equidigital number, since it uses as much as digits as its factorization.

243380032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543278 (or 543268 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 243380032 is about 15600.6420380701. The cubic root of 243380032 is about 624.3502854677.

The spelling of 243380032 in words is "two hundred forty-three million, three hundred eighty thousand, thirty-two".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 224 448 543259 1086518 2173036 3802813 4346072 7605626 8692144 15211252 17384288 30422504 34768576 60845008 121690016 243380032