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13442450305 = 59372869253
BaseRepresentation
bin11001000010011101…
…11000001110000001
31021200211100020011211
430201032320032001
5210012231402210
610101514210121
7654054641134
oct144116701601
937624306154
1013442450305
115778a04969
122731a23941
131362c5720b
1491742021b
1553a1ed38a
hex3213b8381

13442450305 has 8 divisors (see below), whose sum is σ = 16148161512. Its totient is φ = 10742479488.

The previous prime is 13442450293. The next prime is 13442450309. The reversal of 13442450305 is 50305424431.

It can be written as a sum of positive squares in 4 ways, for example, as 798797169 + 12643653136 = 28263^2 + 112444^2 .

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 13442450305 - 215 = 13442417537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13442450309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1429942 + ... + 1439311.

It is an arithmetic number, because the mean of its divisors is an integer number (2018520189).

Almost surely, 213442450305 is an apocalyptic number.

It is an amenable number.

13442450305 is a deficient number, since it is larger than the sum of its proper divisors (2705711207).

13442450305 is an equidigital number, since it uses as much as digits as its factorization.

13442450305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2870195.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 13442450305 its reverse (50305424431), we get a palindrome (63747874736).

The spelling of 13442450305 in words is "thirteen billion, four hundred forty-two million, four hundred fifty thousand, three hundred five".

Divisors: 1 5 937 4685 2869253 14346265 2688490061 13442450305