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51174982655 = 552453195127
BaseRepresentation
bin101111101010010001…
…000100001111111111
311220002110202110210222
4233222101010033333
51314301243421110
635302013251555
73461110114106
oct575221041777
9156073673728
1051174982655
111a780a419a5
129b02493bbb
134a97315134
1426967cb03d
1514e7adcc55
hexbea4443ff

51174982655 has 8 divisors (see below), whose sum is σ = 61411464672. Its totient is φ = 40938995808.

The previous prime is 51174982627. The next prime is 51174982673. The reversal of 51174982655 is 55628947115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-51174982655 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51174982597 and 51174982606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164702 + ... + 359828.

It is an arithmetic number, because the mean of its divisors is an integer number (7676433084).

Almost surely, 251174982655 is an apocalyptic number.

51174982655 is a deficient number, since it is larger than the sum of its proper divisors (10236482017).

51174982655 is a wasteful number, since it uses less digits than its factorization.

51174982655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247585.

The product of its digits is 3024000, while the sum is 53.

The spelling of 51174982655 in words is "fifty-one billion, one hundred seventy-four million, nine hundred eighty-two thousand, six hundred fifty-five".

Divisors: 1 5 52453 195127 262265 975635 10234996531 51174982655