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47128351752 = 23325312350197
BaseRepresentation
bin101011111001000100…
…011001010000001000
311111122110022022210100
4223321010121100020
51233004324224002
633352300045400
73255612244266
oct537104312010
9144573268710
1047128351752
1118a947a9239
129173233860
1345a0b47991
1423d11b9436
15135c70611c
hexaf9119408

47128351752 has 48 divisors (see below), whose sum is σ = 130047584940. Its totient is φ = 15413044608.

The previous prime is 47128351729. The next prime is 47128351759. The reversal of 47128351752 is 25715382174.

47128351752 is a `hidden beast` number, since 4 + 7 + 1 + 2 + 83 + 517 + 52 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 46342895076 + 785456676 = 215274^2 + 28026^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47128351698 and 47128351707.

It is not an unprimeable number, because it can be changed into a prime (47128351759) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6171283 + ... + 6178914.

Almost surely, 247128351752 is an apocalyptic number.

It is an amenable number.

47128351752 is an abundant number, since it is smaller than the sum of its proper divisors (82919233188).

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

47128351752 is a wasteful number, since it uses less digits than its factorization.

47128351752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12350262 (or 12350255 counting only the distinct ones).

The product of its digits is 470400, while the sum is 45.

The spelling of 47128351752 in words is "forty-seven billion, one hundred twenty-eight million, three hundred fifty-one thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 53 72 106 159 212 318 424 477 636 954 1272 1908 3816 12350197 24700394 37050591 49400788 74101182 98801576 111151773 148202364 222303546 296404728 444607092 654560441 889214184 1309120882 1963681323 2618241764 3927362646 5236483528 5891043969 7854725292 11782087938 15709450584 23564175876 47128351752