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13201554427 = 131631002929
BaseRepresentation
bin11000100101101111…
…11011101111111011
31021002001001110011021
430102313323233323
5204014044220202
610021551043311
7645101234605
oct142267735773
937061043137
1013201554427
115664a2a266
122685210537
131325081689
148d3434175
15523eb6a37
hex312dfbbfb

13201554427 has 4 divisors (see below), whose sum is σ = 13202570520. Its totient is φ = 13200538336.

The previous prime is 13201554409. The next prime is 13201554437. The reversal of 13201554427 is 72445510231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72445510231 = 371957986763.

It is a cyclic number.

It is not a de Polignac number, because 13201554427 - 27 = 13201554299 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13201554392 and 13201554401.

It is not an unprimeable number, because it can be changed into a prime (13201554437) 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, 488302 + ... + 514627.

It is an arithmetic number, because the mean of its divisors is an integer number (3300642630).

Almost surely, 213201554427 is an apocalyptic number.

13201554427 is a deficient number, since it is larger than the sum of its proper divisors (1016093).

13201554427 is a wasteful number, since it uses less digits than its factorization.

13201554427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016092.

The product of its (nonzero) digits is 33600, while the sum is 34.

The spelling of 13201554427 in words is "thirteen billion, two hundred one million, five hundred fifty-four thousand, four hundred twenty-seven".

Divisors: 1 13163 1002929 13201554427