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13553852605 = 56144438861
BaseRepresentation
bin11001001111101111…
…10110000010111101
31021222120222001101221
430213313312002331
5210224241240410
610120534033341
7656606563156
oct144767660275
937876861357
1013553852605
115825884087
1227631a8851
131380060937
1492813c92d
15544da64da
hex327df60bd

13553852605 has 8 divisors (see below), whose sum is σ = 16531256664. Its totient is φ = 10665326400.

The previous prime is 13553852603. The next prime is 13553852639. The reversal of 13553852605 is 50625835531.

It can be written as a sum of positive squares in 4 ways, for example, as 3364 + 13553849241 = 58^2 + 116421^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13553852605 - 21 = 13553852603 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13553852603) 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, 22219126 + ... + 22219735.

It is an arithmetic number, because the mean of its divisors is an integer number (2066407083).

Almost surely, 213553852605 is an apocalyptic number.

It is an amenable number.

13553852605 is a deficient number, since it is larger than the sum of its proper divisors (2977404059).

13553852605 is an equidigital number, since it uses as much as digits as its factorization.

13553852605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44438927.

The product of its (nonzero) digits is 540000, while the sum is 43.

The spelling of 13553852605 in words is "thirteen billion, five hundred fifty-three million, eight hundred fifty-two thousand, six hundred five".

Divisors: 1 5 61 305 44438861 222194305 2710770521 13553852605