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12355210445 = 517145355417
BaseRepresentation
bin10111000000110110…
…11000110011001101
31011220001111201110212
423200123120303031
5200300413213240
65401555012205
7615113361464
oct134033306315
934801451425
1012355210445
115270215526
12248989a065
13121b923516
14852c839db
154c4a38165
hex2e06d8ccd

12355210445 has 8 divisors (see below), whose sum is σ = 15698385144. Its totient is φ = 9302746624.

The previous prime is 12355210433. The next prime is 12355210453. The reversal of 12355210445 is 54401255321.

12355210445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7030151716 + 5325058729 = 83846^2 + 72973^2 .

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 12355210445 - 24 = 12355210429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72677624 + ... + 72677793.

It is an arithmetic number, because the mean of its divisors is an integer number (1962298143).

Almost surely, 212355210445 is an apocalyptic number.

It is an amenable number.

12355210445 is a deficient number, since it is larger than the sum of its proper divisors (3343174699).

12355210445 is a wasteful number, since it uses less digits than its factorization.

12355210445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145355439.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 12355210445 its reverse (54401255321), we get a palindrome (66756465766).

The spelling of 12355210445 in words is "twelve billion, three hundred fifty-five million, two hundred ten thousand, four hundred forty-five".

Divisors: 1 5 17 85 145355417 726777085 2471042089 12355210445