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140241043 = 729719219
BaseRepresentation
bin10000101101111…
…10100010010011
3100202212222112201
420112332202103
5241400203133
621525504031
73322013005
oct1026764223
9322788481
10140241043
1172187198
123ab72017
1323092c87
14148a8375
15c4a2d7d
hex85be893

140241043 has 4 divisors (see below), whose sum is σ = 140267560. Its totient is φ = 140214528.

The previous prime is 140241029. The next prime is 140241047. The reversal of 140241043 is 340142041.

140241043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340142041 = 709479749.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-140241043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140241043.

It is not an unprimeable number, because it can be changed into a prime (140241047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2313 + ... + 16906.

It is an arithmetic number, because the mean of its divisors is an integer number (35066890).

Almost surely, 2140241043 is an apocalyptic number.

140241043 is a deficient number, since it is larger than the sum of its proper divisors (26517).

140241043 is an equidigital number, since it uses as much as digits as its factorization.

140241043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26516.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 140241043 is about 11842.3411114526. The cubic root of 140241043 is about 519.5472427389.

Adding to 140241043 its reverse (340142041), we get a palindrome (480383084).

The spelling of 140241043 in words is "one hundred forty million, two hundred forty-one thousand, forty-three".

Divisors: 1 7297 19219 140241043