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243258152 = 2397313477
BaseRepresentation
bin11100111111111…
…01001100101000
3121221201210110012
432133331030220
5444233230102
640045511052
76012442304
oct1637751450
9557653405
10243258152
111153494a5
1269572488
133b521b47
1424442d04
1516551752
hexe7fd328

243258152 has 16 divisors (see below), whose sum is σ = 460812660. Its totient is φ = 120374784.

The previous prime is 243258149. The next prime is 243258157. The reversal of 243258152 is 251852342.

It can be written as a sum of positive squares in 2 ways, for example, as 231465796 + 11792356 = 15214^2 + 3434^2 .

It is not an unprimeable number, because it can be changed into a prime (243258157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155963 + ... + 157514.

Almost surely, 2243258152 is an apocalyptic number.

It is an amenable number.

243258152 is a deficient number, since it is larger than the sum of its proper divisors (217554508).

243258152 is a wasteful number, since it uses less digits than its factorization.

243258152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313580 (or 313576 counting only the distinct ones).

The product of its digits is 19200, while the sum is 32.

The square root of 243258152 is about 15596.7352994144. The cubic root of 243258152 is about 624.2460472274.

The spelling of 243258152 in words is "two hundred forty-three million, two hundred fifty-eight thousand, one hundred fifty-two".

Divisors: 1 2 4 8 97 194 388 776 313477 626954 1253908 2507816 30407269 60814538 121629076 243258152