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240242043 = 3691115891
BaseRepresentation
bin11100101000111…
…00110101111011
3121202001120010110
432110130311323
5443000221133
635501115403
75645011056
oct1624346573
9552046113
10240242043
11113679448
1268558b63
133aa07072
1423c99a9d
1516157c63
hexe51cd7b

240242043 has 8 divisors (see below), whose sum is σ = 320789056. Its totient is φ = 159928200.

The previous prime is 240242039. The next prime is 240242059. The reversal of 240242043 is 340242042.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 240242043 - 22 = 240242039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240242063) 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 7 ways as a sum of consecutive naturals, for example, 55873 + ... + 60018.

It is an arithmetic number, because the mean of its divisors is an integer number (40098632).

Almost surely, 2240242043 is an apocalyptic number.

240242043 is a deficient number, since it is larger than the sum of its proper divisors (80547013).

240242043 is a wasteful number, since it uses less digits than its factorization.

240242043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116585.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 240242043 is about 15499.7433204553. The cubic root of 240242043 is about 621.6553431881.

Adding to 240242043 its reverse (340242042), we get a palindrome (580484085).

Subtracting 240242043 from its reverse (340242042), we obtain a palindrome (99999999).

The spelling of 240242043 in words is "two hundred forty million, two hundred forty-two thousand, forty-three".

Divisors: 1 3 691 2073 115891 347673 80080681 240242043