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140341243 = 729293083
BaseRepresentation
bin10000101110101…
…10111111111011
3100210002001222211
420113112333323
5241411404433
621531555551
73322611100
oct1027267773
9323061884
10140341243
11722454a9
123abbbbb7
13230c9773
14148d2aa7
15c4c28cd
hex85d6ffb

140341243 has 12 divisors (see below), whose sum is σ = 163482840. Its totient is φ = 120124032.

The previous prime is 140341241. The next prime is 140341321. The reversal of 140341243 is 342143041.

It is not a de Polignac number, because 140341243 - 21 = 140341241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140341241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43980 + ... + 47062.

It is an arithmetic number, because the mean of its divisors is an integer number (13623570).

Almost surely, 2140341243 is an apocalyptic number.

140341243 is a deficient number, since it is larger than the sum of its proper divisors (23141597).

140341243 is an equidigital number, since it uses as much as digits as its factorization.

140341243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4026 (or 4019 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 140341243 is about 11846.5709384615. The cubic root of 140341243 is about 519.6709493685.

Adding to 140341243 its reverse (342143041), we get a palindrome (482484284).

The spelling of 140341243 in words is "one hundred forty million, three hundred forty-one thousand, two hundred forty-three".

Divisors: 1 7 49 929 3083 6503 21581 45521 151067 2864107 20048749 140341243