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140142613 = 13192112689
BaseRepresentation
bin10000101101001…
…10100000010101
3100202200222112011
420112212200111
5241334030423
621523424221
73321123022
oct1026464025
9322628464
10140142613
117211a246
123ab25071
132305a230
1414880549
15c483b0d
hex85a6815

140142613 has 16 divisors (see below), whose sum is σ = 159678400. Its totient is φ = 121927680.

The previous prime is 140142601. The next prime is 140142619. The reversal of 140142613 is 316241041.

It is a cyclic number.

It is not a de Polignac number, because 140142613 - 221 = 138045461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140142619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50773 + ... + 53461.

It is an arithmetic number, because the mean of its divisors is an integer number (9979900).

Almost surely, 2140142613 is an apocalyptic number.

140142613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

140142613 is a deficient number, since it is larger than the sum of its proper divisors (19535787).

140142613 is a wasteful number, since it uses less digits than its factorization.

140142613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2932.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 140142613 is about 11838.1845314220. The cubic root of 140142613 is about 519.4256639607.

Adding to 140142613 its reverse (316241041), we get a palindrome (456383654).

The spelling of 140142613 in words is "one hundred forty million, one hundred forty-two thousand, six hundred thirteen".

Divisors: 1 13 19 211 247 2689 2743 4009 34957 51091 52117 567379 664183 7375927 10780201 140142613