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142818868291 = 1134737416523
BaseRepresentation
bin1000010100000010101…
…0101111110001000011
3111122122021220020002111
42011000222233301003
54314443112241131
6145335440000151
713214120231131
oct2050052576103
9448567806074
10142818868291
1155629589660
1223819900057
13106108974b8
146cabb64751
153aad436ab1
hex2140aafc43

142818868291 has 8 divisors (see below), whose sum is σ = 156251404224. Its totient is φ = 129461166120.

The previous prime is 142818868289. The next prime is 142818868319. The reversal of 142818868291 is 192868818241.

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

It is not a de Polignac number, because 142818868291 - 21 = 142818868289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142818868201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18704445 + ... + 18712078.

It is an arithmetic number, because the mean of its divisors is an integer number (19531425528).

Almost surely, 2142818868291 is an apocalyptic number.

142818868291 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

142818868291 is a deficient number, since it is larger than the sum of its proper divisors (13432535933).

142818868291 is a wasteful number, since it uses less digits than its factorization.

142818868291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37416881.

The product of its digits is 3538944, while the sum is 58.

The spelling of 142818868291 in words is "one hundred forty-two billion, eight hundred eighteen million, eight hundred sixty-eight thousand, two hundred ninety-one".

Divisors: 1 11 347 3817 37416523 411581753 12983533481 142818868291