Search a number
-
+
243260160 = 28351113443
BaseRepresentation
bin11100111111111…
…01101100000000
3121221201220012120
432133331230000
5444233311120
640045524240
76012451203
oct1637755400
9557656176
10243260160
1111534aa60
1269573680
133b522a30
142444393a
1516552140
hexe7fdb00

243260160 has 288 divisors, whose sum is σ = 914796288. Its totient is φ = 54312960.

The previous prime is 243260153. The next prime is 243260161. The reversal of 243260160 is 61062342.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 243260160.

It is not an unprimeable number, because it can be changed into a prime (243260161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 548899 + ... + 549341.

It is an arithmetic number, because the mean of its divisors is an integer number (3176376).

Almost surely, 2243260160 is an apocalyptic number.

243260160 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 243260160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (457398144).

243260160 is an abundant number, since it is smaller than the sum of its proper divisors (671536128).

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

243260160 is a wasteful number, since it uses less digits than its factorization.

243260160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491 (or 477 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 243260160 is about 15596.7996717275. The cubic root of 243260160 is about 624.2477648576.

The spelling of 243260160 in words is "two hundred forty-three million, two hundred sixty thousand, one hundred sixty".