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201041210321 = 728720172903
BaseRepresentation
bin1011101100111011111…
…1010110101111010001
3201012220220111122112122
42323032333112233101
511243213022212241
6232205042504025
720344663043420
oct2731677265721
9635826448478
10201041210321
11782965819a6
1232b68365015
1315c5bc57a63
149a324b92b7
155369a9604b
hex2ecefd6bd1

201041210321 has 4 divisors (see below), whose sum is σ = 229761383232. Its totient is φ = 172321037412.

The previous prime is 201041210281. The next prime is 201041210351. The reversal of 201041210321 is 123012140102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-201041210321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201041210321.

It is not an unprimeable number, because it can be changed into a prime (201041210351) 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, 14360086445 + ... + 14360086458.

It is an arithmetic number, because the mean of its divisors is an integer number (57440345808).

Almost surely, 2201041210321 is an apocalyptic number.

It is an amenable number.

201041210321 is a deficient number, since it is larger than the sum of its proper divisors (28720172911).

201041210321 is an equidigital number, since it uses as much as digits as its factorization.

201041210321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28720172910.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 201041210321 its reverse (123012140102), we get a palindrome (324053350423).

The spelling of 201041210321 in words is "two hundred one billion, forty-one million, two hundred ten thousand, three hundred twenty-one".

Divisors: 1 7 28720172903 201041210321