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243011230 = 25711315599
BaseRepresentation
bin11100111110000…
…00111010011110
3121221021020201221
432133000322132
5444202324410
640040323554
76010363360
oct1637007236
9557236657
10243011230
1111519aa30
12694735ba
133b466637
14243bad30
15165034da
hexe7c0e9e

243011230 has 32 divisors (see below), whose sum is σ = 545356800. Its totient is φ = 75743520.

The previous prime is 243011221. The next prime is 243011267. The reversal of 243011230 is 32110342.

It is a happy number.

It is a super-2 number, since 2×2430112302 = 118108915812225800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157030 + ... + 158569.

It is an arithmetic number, because the mean of its divisors is an integer number (17042400).

Almost surely, 2243011230 is an apocalyptic number.

243011230 is an abundant number, since it is smaller than the sum of its proper divisors (302345570).

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

243011230 is a wasteful number, since it uses less digits than its factorization.

243011230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315624.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 243011230 is about 15588.8174663763. The cubic root of 243011230 is about 624.0347596652.

Adding to 243011230 its reverse (32110342), we get a palindrome (275121572).

The spelling of 243011230 in words is "two hundred forty-three million, eleven thousand, two hundred thirty".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 154 385 770 315599 631198 1577995 2209193 3155990 3471589 4418386 6943178 11045965 17357945 22091930 24301123 34715890 48602246 121505615 243011230