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240440141 is a prime number
BaseRepresentation
bin11100101010011…
…01001101001101
3121202102121212102
432111031031031
5443023041031
635505244445
75646464444
oct1625151515
9552377772
10240440141
111137a4267
1268633725
133aa76296
1423d0bd5b
15161967cb
hexe54d34d

240440141 has 2 divisors, whose sum is σ = 240440142. Its totient is φ = 240440140.

The previous prime is 240440111. The next prime is 240440147. The reversal of 240440141 is 141044042.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208686916 + 31753225 = 14446^2 + 5635^2 .

It is a cyclic number.

It is not a de Polignac number, because 240440141 - 26 = 240440077 is a prime.

It is a super-2 number, since 2×2404401412 = 115622922808199762, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240440147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120220070 + 120220071.

It is an arithmetic number, because the mean of its divisors is an integer number (120220071).

Almost surely, 2240440141 is an apocalyptic number.

It is an amenable number.

240440141 is a deficient number, since it is larger than the sum of its proper divisors (1).

240440141 is an equidigital number, since it uses as much as digits as its factorization.

240440141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 240440141 is about 15506.1323675506. The cubic root of 240440141 is about 621.8261637567.

Adding to 240440141 its reverse (141044042), we get a palindrome (381484183).

The spelling of 240440141 in words is "two hundred forty million, four hundred forty thousand, one hundred forty-one".