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13252232305 = 513203880497
BaseRepresentation
bin11000101011110010…
…10000010001110001
31021012120102011010201
430111321100101301
5204120032413210
610031001155201
7646255054534
oct142571202161
937176364121
1013252232305
1156905a3304
12269a18bb01
1313327164a0
148da066a1b
1552867753a
hex315e50471

13252232305 has 8 divisors (see below), whose sum is σ = 17125961832. Its totient is φ = 9786263808.

The previous prime is 13252232303. The next prime is 13252232333. The reversal of 13252232305 is 50323225231.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3301489 + 13248930816 = 1817^2 + 115104^2 .

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 13252232305 - 21 = 13252232303 is a prime.

It is a super-2 number, since 2×132522323052 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13252232303) 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, 101940184 + ... + 101940313.

It is an arithmetic number, because the mean of its divisors is an integer number (2140745229).

Almost surely, 213252232305 is an apocalyptic number.

It is an amenable number.

13252232305 is a deficient number, since it is larger than the sum of its proper divisors (3873729527).

13252232305 is a wasteful number, since it uses less digits than its factorization.

13252232305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203880515.

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 13252232305 its reverse (50323225231), we get a palindrome (63575457536).

The spelling of 13252232305 in words is "thirteen billion, two hundred fifty-two million, two hundred thirty-two thousand, three hundred five".

Divisors: 1 5 13 65 203880497 1019402485 2650446461 13252232305