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142634519 = 374782021
BaseRepresentation
bin10001000000001…
…10111000010111
3100221101120202222
420200012320113
5243003301034
622053052555
73351242036
oct1040067027
9327346688
10142634519
1173571475
123b92715b
1323720531
1414d2c71d
15c7c712e
hex8806e17

142634519 has 8 divisors (see below), whose sum is σ = 149608128. Its totient is φ = 135825120.

The previous prime is 142634461. The next prime is 142634549. The reversal of 142634519 is 915436241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142634519 - 216 = 142568983 is a prime.

It is a super-2 number, since 2×1426345192 = 40689212020722722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142634549) 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 7 ways as a sum of consecutive naturals, for example, 39272 + ... + 42749.

It is an arithmetic number, because the mean of its divisors is an integer number (18701016).

Almost surely, 2142634519 is an apocalyptic number.

142634519 is a deficient number, since it is larger than the sum of its proper divisors (6973609).

142634519 is an equidigital number, since it uses as much as digits as its factorization.

142634519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82105.

The product of its digits is 25920, while the sum is 35.

The square root of 142634519 is about 11942.9694381255. The cubic root of 142634519 is about 522.4862678106.

The spelling of 142634519 in words is "one hundred forty-two million, six hundred thirty-four thousand, five hundred nineteen".

Divisors: 1 37 47 1739 82021 3034777 3854987 142634519