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51054345143 = 195373694513
BaseRepresentation
bin101111100011000100…
…110111101110110111
311212210001202110020222
4233203010313232313
51314024403021033
635242023444555
73455113526204
oct574304675667
9155701673228
1051054345143
111a71993517a
129a89bb675b
134a78326ca9
142684786cab
1514dc20d598
hexbe3137bb7

51054345143 has 16 divisors (see below), whose sum is σ = 55505558880. Its totient is φ = 46804552704.

The previous prime is 51054345137. The next prime is 51054345217. The reversal of 51054345143 is 34154345015.

It is not a de Polignac number, because 51054345143 - 24 = 51054345127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51054345743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273746 + ... + 420767.

It is an arithmetic number, because the mean of its divisors is an integer number (3469097430).

Almost surely, 251054345143 is an apocalyptic number.

51054345143 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

51054345143 is a deficient number, since it is larger than the sum of its proper divisors (4451213737).

51054345143 is a wasteful number, since it uses less digits than its factorization.

51054345143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694658.

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 51054345143 in words is "fifty-one billion, fifty-four million, three hundred forty-five thousand, one hundred forty-three".

Divisors: 1 19 53 73 1007 1387 3869 73511 694513 13195747 36809189 50699449 699374591 963289531 2687070797 51054345143