Search a number
-
+
243360000 = 283254132
BaseRepresentation
bin11101000000101…
…10000100000000
3121221220222011100
432200112010000
5444300010000
640052014400
76013345242
oct1640260400
9557828140
10243360000
11115408a74
1269601400
133b559300
142446c092
1516571a00
hexe816100

243360000 has 405 divisors, whose sum is σ = 949437489. Its totient is φ = 59904000.

The previous prime is 243359993. The next prime is 243360011. The reversal of 243360000 is 63342.

The square root of 243360000 is 15600.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 240374016 + 2985984 = 15504^2 + 1728^2 .

It is a super-3 number, since 3×2433600003 (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 18719994 + ... + 18720006.

Almost surely, 2243360000 is an apocalyptic number.

243360000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

243360000 is the 15600-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243360000

243360000 is an abundant number, since it is smaller than the sum of its proper divisors (706077489).

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

243360000 is an equidigital number, since it uses as much as digits as its factorization.

243360000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68 (or 23 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The cubic root of 243360000 is about 624.3331554290. Note that the first 3 decimals are identical.

The spelling of 243360000 in words is "two hundred forty-three million, three hundred sixty thousand".