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134812801 = 487276823
BaseRepresentation
bin10000000100100…
…01010010000001
3100101200012101201
420002101102001
5234003002201
621213301201
73224614144
oct1002212201
9311605351
10134812801
116a109942
1239194801
1321c122b6
1413c9405b
15bc7e801
hex8091481

134812801 has 4 divisors (see below), whose sum is σ = 135090112. Its totient is φ = 134535492.

The previous prime is 134812787. The next prime is 134812807. The reversal of 134812801 is 108218431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 108218431 = 269402299.

It is a cyclic number.

It is not a de Polignac number, because 134812801 - 213 = 134804609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 134812801.

It is not an unprimeable number, because it can be changed into a prime (134812807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137925 + ... + 138898.

It is an arithmetic number, because the mean of its divisors is an integer number (33772528).

Almost surely, 2134812801 is an apocalyptic number.

It is an amenable number.

134812801 is a deficient number, since it is larger than the sum of its proper divisors (277311).

134812801 is an equidigital number, since it uses as much as digits as its factorization.

134812801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277310.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 134812801 is about 11610.8914817080. The cubic root of 134812801 is about 512.7555589211.

The spelling of 134812801 in words is "one hundred thirty-four million, eight hundred twelve thousand, eight hundred one".

Divisors: 1 487 276823 134812801