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142213345213 = 577641384509
BaseRepresentation
bin1000010001110010010…
…0110110111110111101
3111121002002111110120211
42010130210312332331
54312223104021323
6145155405312421
713163115326542
oct2043444667675
9447062443524
10142213345213
11553487a9165
122368ab65711
13105452b6a14
146c51580bc9
153a751c770d
hex211c936fbd

142213345213 has 8 divisors (see below), whose sum is σ = 142682432760. Its totient is φ = 141745029120.

The previous prime is 142213345187. The next prime is 142213345231. The reversal of 142213345213 is 312543312241.

It can be written as a sum of positive squares in 4 ways, for example, as 56213090649 + 86000254564 = 237093^2 + 293258^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-142213345213 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 (142213345513) 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, 177603 + ... + 562111.

It is an arithmetic number, because the mean of its divisors is an integer number (17835304095).

Almost surely, 2142213345213 is an apocalyptic number.

It is an amenable number.

142213345213 is a deficient number, since it is larger than the sum of its proper divisors (469087547).

142213345213 is an equidigital number, since it uses as much as digits as its factorization.

142213345213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385727.

The product of its digits is 17280, while the sum is 31.

Adding to 142213345213 its reverse (312543312241), we get a palindrome (454756657454).

The spelling of 142213345213 in words is "one hundred forty-two billion, two hundred thirteen million, three hundred forty-five thousand, two hundred thirteen".

Divisors: 1 577 641 369857 384509 221861693 246470269 142213345213