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243020153041 = 263099237149
BaseRepresentation
bin1110001001010100100…
…0010100000011010001
3212020021111021220002221
43202111020110003101
512440201124344131
6303350353141041
723362160134501
oct3422510240321
9766244256087
10243020153041
11940785a4996
123b122b5a781
1319bbbcc0c33
14ba9581da01
1564c5181411
hex38952140d1

243020153041 has 4 divisors (see below), whose sum is σ = 243029416500. Its totient is φ = 243010889584.

The previous prime is 243020153017. The next prime is 243020153083. The reversal of 243020153041 is 140351020342.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 78991913025 + 164028240016 = 281055^2 + 405004^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-243020153041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243020152997 and 243020153015.

It is not an unprimeable number, because it can be changed into a prime (243020150041) 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, 4592266 + ... + 4644883.

It is an arithmetic number, because the mean of its divisors is an integer number (60757354125).

Almost surely, 2243020153041 is an apocalyptic number.

It is an amenable number.

243020153041 is a deficient number, since it is larger than the sum of its proper divisors (9263459).

243020153041 is an equidigital number, since it uses as much as digits as its factorization.

243020153041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9263458.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 243020153041 its reverse (140351020342), we get a palindrome (383371173383).

The spelling of 243020153041 in words is "two hundred forty-three billion, twenty million, one hundred fifty-three thousand, forty-one".

Divisors: 1 26309 9237149 243020153041