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13553638297 = 175932094211
BaseRepresentation
bin11001001111101110…
…00001101110011001
31021222120120011102121
430213313001232121
5210224212411142
610120525301241
7656605011313
oct144767015631
937876504377
1013553638297
115825748071
122763104821
13137ccb7224
149280c47b3
15544d62c67
hex327dc1b99

13553638297 has 16 divisors (see below), whose sum is σ = 14602161600. Its totient is φ = 12533271040.

The previous prime is 13553638261. The next prime is 13553638349. The reversal of 13553638297 is 79283635531.

It is a cyclic number.

It is not a de Polignac number, because 13553638297 - 219 = 13553114009 is a prime.

It is a super-2 number, since 2×135536382972 (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 (13553638097) 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 15 ways as a sum of consecutive naturals, for example, 3216522 + ... + 3220732.

It is an arithmetic number, because the mean of its divisors is an integer number (912635100).

Almost surely, 213553638297 is an apocalyptic number.

13553638297 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13553638297 is a deficient number, since it is larger than the sum of its proper divisors (1048523303).

13553638297 is a wasteful number, since it uses less digits than its factorization.

13553638297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7496.

The product of its digits is 4082400, while the sum is 52.

The spelling of 13553638297 in words is "thirteen billion, five hundred fifty-three million, six hundred thirty-eight thousand, two hundred ninety-seven".

Divisors: 1 17 59 1003 3209 4211 54553 71587 189331 248449 3218627 4223633 13513099 229722683 797272841 13553638297