Base | Representation |
---|---|
bin | 101011111001000100… |
… | …011001010000001000 |
3 | 11111122110022022210100 |
4 | 223321010121100020 |
5 | 1233004324224002 |
6 | 33352300045400 |
7 | 3255612244266 |
oct | 537104312010 |
9 | 144573268710 |
10 | 47128351752 |
11 | 18a947a9239 |
12 | 9173233860 |
13 | 45a0b47991 |
14 | 23d11b9436 |
15 | 135c70611c |
hex | af9119408 |
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".
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