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12301205225 = 52492048209
BaseRepresentation
bin10110111010011010…
…10111111011101001
31011202021212222020112
423131031113323221
5200143102031400
65352345304105
7613556343041
oct133515277351
934667788215
1012301205225
115242789611
122473795035
13121069507a
14849a26721
154bee1b835
hex2dd357ee9

12301205225 has 6 divisors (see below), whose sum is σ = 15253494510. Its totient is φ = 9840964160.

The previous prime is 12301205149. The next prime is 12301205233. The reversal of 12301205225 is 52250210321.

It can be written as a sum of positive squares in 3 ways, for example, as 13039321 + 12288165904 = 3611^2 + 110852^2 .

It is not a de Polignac number, because 12301205225 - 214 = 12301188841 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12301205225.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 246024080 + ... + 246024129.

It is an arithmetic number, because the mean of its divisors is an integer number (2542249085).

Almost surely, 212301205225 is an apocalyptic number.

It is an amenable number.

12301205225 is a deficient number, since it is larger than the sum of its proper divisors (2952289285).

12301205225 is an equidigital number, since it uses as much as digits as its factorization.

12301205225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492048219 (or 492048214 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 12301205225 its reverse (52250210321), we get a palindrome (64551415546).

The spelling of 12301205225 in words is "twelve billion, three hundred one million, two hundred five thousand, two hundred twenty-five".

Divisors: 1 5 25 492048209 2460241045 12301205225