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13550215211 = 131761313191
BaseRepresentation
bin11001001111010011…
…11110000000101011
31021222100010020211122
430213221332000223
5210222323341321
610120324045455
7656533633421
oct144751760053
937870106748
1013550215211
11582381a275
122761b3388b
13137c389130
14927873111
155448d88ab
hex327a7e02b

13550215211 has 8 divisors (see below), whose sum is σ = 15450924384. Its totient is φ = 11772132480.

The previous prime is 13550215183. The next prime is 13550215249. The reversal of 13550215211 is 11251205531.

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 13550215211 - 226 = 13483106347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13550215111) 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, 30656375 + ... + 30656816.

It is an arithmetic number, because the mean of its divisors is an integer number (1931365548).

Almost surely, 213550215211 is an apocalyptic number.

13550215211 is a deficient number, since it is larger than the sum of its proper divisors (1900709173).

13550215211 is a wasteful number, since it uses less digits than its factorization.

13550215211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61313221.

The product of its (nonzero) digits is 1500, while the sum is 26.

The spelling of 13550215211 in words is "thirteen billion, five hundred fifty million, two hundred fifteen thousand, two hundred eleven".

Divisors: 1 13 17 221 61313191 797071483 1042324247 13550215211