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140233243 = 1931415807
BaseRepresentation
bin10000101101111…
…00101000011011
3100202212120211211
420112330220123
5241344430433
621525403551
73321651163
oct1026745033
9322776754
10140233243
1172181347
123ab695b7
132308c567
14148a55a3
15c4a08cd
hex85bca1b

140233243 has 16 divisors (see below), whose sum is σ = 156119040. Its totient is φ = 125409600.

The previous prime is 140233229. The next prime is 140233253. The reversal of 140233243 is 342332041.

It is a happy number.

140233243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 140233243 - 29 = 140232731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140233213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21246 + ... + 27052.

It is an arithmetic number, because the mean of its divisors is an integer number (9757440).

Almost surely, 2140233243 is an apocalyptic number.

140233243 is a deficient number, since it is larger than the sum of its proper divisors (15885797).

140233243 is a wasteful number, since it uses less digits than its factorization.

140233243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5898.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 140233243 is about 11842.0117800989. The cubic root of 140233243 is about 519.5376104098.

Adding to 140233243 its reverse (342332041), we get a palindrome (482565284).

The spelling of 140233243 in words is "one hundred forty million, two hundred thirty-three thousand, two hundred forty-three".

Divisors: 1 19 31 41 589 779 1271 5807 24149 110333 180017 238087 3420323 4523653 7380697 140233243