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140354141 = 243757593
BaseRepresentation
bin10000101110110…
…10001001011101
3100210002201200112
420113122021131
5241412313031
621532135405
73322663514
oct1027321135
9323081615
10140354141
1172254164
123b007565
13231025b5
14148d767b
15c4c662b
hex85da25d

140354141 has 4 divisors (see below), whose sum is σ = 140414172. Its totient is φ = 140294112.

The previous prime is 140354099. The next prime is 140354153. The reversal of 140354141 is 141453041.

140354141 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: 141453041 = 939715053.

It can be written as a sum of positive squares in 2 ways, for example, as 84254041 + 56100100 = 9179^2 + 7490^2 .

It is a cyclic number.

It is not a de Polignac number, because 140354141 - 26 = 140354077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140354191) 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, 26360 + ... + 31233.

It is an arithmetic number, because the mean of its divisors is an integer number (35103543).

Almost surely, 2140354141 is an apocalyptic number.

It is an amenable number.

140354141 is a deficient number, since it is larger than the sum of its proper divisors (60031).

140354141 is an equidigital number, since it uses as much as digits as its factorization.

140354141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60030.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 140354141 is about 11847.1153028912. The cubic root of 140354141 is about 519.6868689239.

The spelling of 140354141 in words is "one hundred forty million, three hundred fifty-four thousand, one hundred forty-one".

Divisors: 1 2437 57593 140354141