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241724489 = 1390117389
BaseRepresentation
bin11100110100001…
…10110001001001
3121211211212122212
432122012301021
5443340140424
635552554505
75663424056
oct1632066111
9554755585
10241724489
111144a1206
1268b52a35
133b105a56
142416402d
151634c10e
hexe686c49

241724489 has 4 divisors (see below), whose sum is σ = 241755780. Its totient is φ = 241693200.

The previous prime is 241724477. The next prime is 241724491. The reversal of 241724489 is 984427142.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 984427142 = 2492213571.

It can be written as a sum of positive squares in 2 ways, for example, as 176438089 + 65286400 = 13283^2 + 8080^2 .

It is a cyclic number.

It is not a de Polignac number, because 241724489 - 24 = 241724473 is a prime.

It is a super-2 number, since 2×2417244892 = 116861457164622242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (241724419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5207 + ... + 22595.

It is an arithmetic number, because the mean of its divisors is an integer number (60438945).

Almost surely, 2241724489 is an apocalyptic number.

It is an amenable number.

241724489 is a deficient number, since it is larger than the sum of its proper divisors (31291).

241724489 is a wasteful number, since it uses less digits than its factorization.

241724489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31290.

The product of its digits is 129024, while the sum is 41.

The square root of 241724489 is about 15547.4914053683. The cubic root of 241724489 is about 622.9313915414.

The spelling of 241724489 in words is "two hundred forty-one million, seven hundred twenty-four thousand, four hundred eighty-nine".

Divisors: 1 13901 17389 241724489