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142431332033 = 178378313649
BaseRepresentation
bin1000010010100110010…
…0011010011011000001
3111121122021200100021202
42010221210122123001
54313144410111113
6145233153430545
713201403226614
oct2045144323301
9447567610252
10142431332033
115544a856961
122372bb6b455
131057b4cacc3
146c724c617b
153a893d6258
hex212991a6c1

142431332033 has 4 divisors (see below), whose sum is σ = 150809645700. Its totient is φ = 134053018368.

The previous prime is 142431332011. The next prime is 142431332077. The reversal of 142431332033 is 330233134241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 330233134241 = 422237821167.

It can be written as a sum of positive squares in 2 ways, for example, as 70645918849 + 71785413184 = 265793^2 + 267928^2 .

It is a cyclic number.

It is not a de Polignac number, because 142431332033 - 236 = 73711855297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142431331987 and 142431332005.

It is not an unprimeable number, because it can be changed into a prime (142431332083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4189156808 + ... + 4189156841.

It is an arithmetic number, because the mean of its divisors is an integer number (37702411425).

Almost surely, 2142431332033 is an apocalyptic number.

It is an amenable number.

142431332033 is a deficient number, since it is larger than the sum of its proper divisors (8378313667).

142431332033 is an equidigital number, since it uses as much as digits as its factorization.

142431332033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8378313666.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 142431332033 its reverse (330233134241), we get a palindrome (472664466274).

The spelling of 142431332033 in words is "one hundred forty-two billion, four hundred thirty-one million, three hundred thirty-two thousand, thirty-three".

Divisors: 1 17 8378313649 142431332033