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51025411244 = 2271179666941
BaseRepresentation
bin101111100001010110…
…011111110010101100
311212201001022110102002
4233201112133302230
51314000001124434
635235111351432
73454312560623
oct574126376254
9155631273362
1051025411244
111a704572765
129a80382578
134a72336342
1426809b46ba
1514d98e557e
hexbe159fcac

51025411244 has 12 divisors (see below), whose sum is σ = 90552138768. Its totient is φ = 25153371600.

The previous prime is 51025411223. The next prime is 51025411249. The reversal of 51025411244 is 44211452015.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51025411249) 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, 89833187 + ... + 89833754.

It is an arithmetic number, because the mean of its divisors is an integer number (7546011564).

Almost surely, 251025411244 is an apocalyptic number.

It is an amenable number.

51025411244 is a deficient number, since it is larger than the sum of its proper divisors (39526727524).

51025411244 is a wasteful number, since it uses less digits than its factorization.

51025411244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179667016 (or 179667014 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 51025411244 its reverse (44211452015), we get a palindrome (95236863259).

The spelling of 51025411244 in words is "fifty-one billion, twenty-five million, four hundred eleven thousand, two hundred forty-four".

Divisors: 1 2 4 71 142 284 179666941 359333882 718667764 12756352811 25512705622 51025411244