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142142223241 = 616229374089
BaseRepresentation
bin1000010001100001010…
…1100011001110001001
3111120220010200002120201
42010120111203032021
54312101402120431
6145144345052201
713161262651054
oct2043025431611
9446803602521
10142142223241
1155311641177
122366b187061
1310533644605
146c45d49a9b
153a6dd29461
hex2118563389

142142223241 has 8 divisors (see below), whose sum is σ = 144496003400. Its totient is φ = 139789203840.

The previous prime is 142142223229. The next prime is 142142223247. The reversal of 142142223241 is 142322241241.

It can be written as a sum of positive squares in 4 ways, for example, as 99920016 + 142042303225 = 9996^2 + 376885^2 .

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 142142223241 - 213 = 142142215049 is a prime.

It is a super-3 number, since 3×1421422232413 (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142142223247) 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, 192925 + ... + 567013.

It is an arithmetic number, because the mean of its divisors is an integer number (18062000425).

Almost surely, 2142142223241 is an apocalyptic number.

It is an amenable number.

142142223241 is a deficient number, since it is larger than the sum of its proper divisors (2353780159).

142142223241 is an equidigital number, since it uses as much as digits as its factorization.

142142223241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380379.

The product of its digits is 6144, while the sum is 28.

Adding to 142142223241 its reverse (142322241241), we get a palindrome (284464464482).

The spelling of 142142223241 in words is "one hundred forty-two billion, one hundred forty-two million, two hundred twenty-three thousand, two hundred forty-one".

Divisors: 1 61 6229 374089 379969 22819429 2330200381 142142223241