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1230050105513 = 2085758975409
BaseRepresentation
bin10001111001100100101…
…100110001100010101001
311100120222022021122012022
4101321210230301202221
5130123120311334023
62341024402354225
7154603534246055
oct21714454614251
94316868248168
101230050105513
11434730243139
1217a48535b975
138bcbb174228
144376b496c65
1521ee2e107c8
hex11e64b318a9

1230050105513 has 4 divisors (see below), whose sum is σ = 1230109101780. Its totient is φ = 1229991109248.

The previous prime is 1230050105489. The next prime is 1230050105551. The reversal of 1230050105513 is 3155010500321.

It is a happy number.

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 1129569347344 + 100480758169 = 1062812^2 + 316987^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230050105513 - 218 = 1230049843369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230050105563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29466848 + ... + 29508561.

It is an arithmetic number, because the mean of its divisors is an integer number (307527275445).

Almost surely, 21230050105513 is an apocalyptic number.

It is an amenable number.

1230050105513 is a deficient number, since it is larger than the sum of its proper divisors (58996267).

1230050105513 is an equidigital number, since it uses as much as digits as its factorization.

1230050105513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58996266.

The product of its (nonzero) digits is 2250, while the sum is 26.

Adding to 1230050105513 its reverse (3155010500321), we get a palindrome (4385060605834).

The spelling of 1230050105513 in words is "one trillion, two hundred thirty billion, fifty million, one hundred five thousand, five hundred thirteen".

Divisors: 1 20857 58975409 1230050105513