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51080808133 = 2916310806179
BaseRepresentation
bin101111100100101001…
…110100011011000101
311212211220112220122201
4233210221310123011
51314103141330013
635244410554501
73455554463605
oct574451643305
9155756486581
1051080808133
111a73286a213
129a96a38a31
134a80961074
1426880b4c05
1514de6d93dd
hexbe4a746c5

51080808133 has 8 divisors (see below), whose sum is σ = 53166405600. Its totient is φ = 49016823408.

The previous prime is 51080808127. The next prime is 51080808139. The reversal of 51080808133 is 33180808015.

It is an interprime number because it is at equal distance from previous prime (51080808127) and next prime (51080808139).

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 51080808133 - 217 = 51080677061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51080808092 and 51080808101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51080808139) 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 7 ways as a sum of consecutive naturals, for example, 5398363 + ... + 5407816.

It is an arithmetic number, because the mean of its divisors is an integer number (6645800700).

Almost surely, 251080808133 is an apocalyptic number.

It is an amenable number.

51080808133 is a deficient number, since it is larger than the sum of its proper divisors (2085597467).

51080808133 is a wasteful number, since it uses less digits than its factorization.

51080808133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10806371.

The product of its (nonzero) digits is 23040, while the sum is 37.

The spelling of 51080808133 in words is "fifty-one billion, eighty million, eight hundred eight thousand, one hundred thirty-three".

Divisors: 1 29 163 4727 10806179 313379191 1761407177 51080808133