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51012490045248 = 26321731211874567
BaseRepresentation
bin10111001100101010001010…
…10110010010011101000000
320200121202011010210201200100
423212111011112102131000
523141242034422421443
6300254451524522400
713513350026000214
oct1346250526223500
9220552133721610
1051012490045248
1115288303812926
12587a68b850400
1322605c3531324
14c85036792944
155d6e42b953d3
hex2e6545592740

51012490045248 has 504 divisors, whose sum is σ = 160144254743616. Its totient is φ = 15471226920960.

The previous prime is 51012490045247. The next prime is 51012490045267. The reversal of 51012490045248 is 84254009421015.

51012490045248 is a `hidden beast` number, since 5 + 10 + 1 + 24 + 90 + 0 + 4 + 524 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51012490045247) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 11169800661 + ... + 11169805227.

Almost surely, 251012490045248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51012490045248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80072127371808).

51012490045248 is an abundant number, since it is smaller than the sum of its proper divisors (109131764698368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51012490045248 is a wasteful number, since it uses less digits than its factorization.

51012490045248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5851 (or 5807 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The spelling of 51012490045248 in words is "fifty-one trillion, twelve billion, four hundred ninety million, forty-five thousand, two hundred forty-eight".