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13609830953 = 37367833269
BaseRepresentation
bin11001010110011010…
…11000101000101001
31022010111022001021002
430223031120220221
5210333104042303
610130253524345
7661156440305
oct145315305051
938114261232
1013609830953
115854438484
122779aa36b5
13138b830214
14931750d05
15549c62788
hex32b358a29

13609830953 has 4 divisors (see below), whose sum is σ = 13977664260. Its totient is φ = 13241997648.

The previous prime is 13609830919. The next prime is 13609830973. The reversal of 13609830953 is 35903890631.

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 4644013609 + 8965817344 = 68147^2 + 94688^2 .

It is a cyclic number.

It is not a de Polignac number, because 13609830953 - 28 = 13609830697 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13609830898 and 13609830907.

It is not an unprimeable number, because it can be changed into a prime (13609830973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183916598 + ... + 183916671.

It is an arithmetic number, because the mean of its divisors is an integer number (3494416065).

Almost surely, 213609830953 is an apocalyptic number.

It is an amenable number.

13609830953 is a deficient number, since it is larger than the sum of its proper divisors (367833307).

13609830953 is an equidigital number, since it uses as much as digits as its factorization.

13609830953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367833306.

The product of its (nonzero) digits is 524880, while the sum is 47.

The spelling of 13609830953 in words is "thirteen billion, six hundred nine million, eight hundred thirty thousand, nine hundred fifty-three".

Divisors: 1 37 367833269 13609830953