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51448818241 = 1719159284267
BaseRepresentation
bin101111111010100101…
…101010101001000001
311220210120000202121201
4233322211222221001
51320331344140431
635345114421201
73500643511432
oct577245525101
9156716022551
1051448818241
111a9015756a7
129b7a131801
134b0bc81a22
1426c0d0d489
151511b7e461
hexbfa96aa41

51448818241 has 8 divisors (see below), whose sum is σ = 57342336480. Its totient is φ = 45873868608.

The previous prime is 51448818227. The next prime is 51448818277. The reversal of 51448818241 is 14281884415.

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 51448818241 - 215 = 51448785473 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51448818191 and 51448818200.

It is not an unprimeable number, because it can be changed into a prime (51448818221) 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, 79641811 + ... + 79642456.

It is an arithmetic number, because the mean of its divisors is an integer number (7167792060).

Almost surely, 251448818241 is an apocalyptic number.

It is an amenable number.

51448818241 is a deficient number, since it is larger than the sum of its proper divisors (5893518239).

51448818241 is a wasteful number, since it uses less digits than its factorization.

51448818241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159284303.

The product of its digits is 327680, while the sum is 46.

The spelling of 51448818241 in words is "fifty-one billion, four hundred forty-eight million, eight hundred eighteen thousand, two hundred forty-one".

Divisors: 1 17 19 323 159284267 2707832539 3026401073 51448818241