Base | Representation |
---|---|
bin | 10011111100000100101011… |
… | …011010101011100101110000 |
3 | 102111111011222211122211111201 |
4 | 103330010223122223211300 |
5 | 42443212310334301013 |
6 | 510300420220420544 |
7 | 24320320413645160 |
oct | 2374045332534560 |
9 | 374434884584451 |
10 | 87691075697008 |
11 | 25a39638147163 |
12 | 9a0314b9a7754 |
13 | 39c1304a5c104 |
14 | 17923b0b825a0 |
15 | a210a59b73dd |
hex | 4fc12b6ab970 |
87691075697008 has 40 divisors (see below), whose sum is σ = 194203865157120. Its totient is φ = 37575934299840.
The previous prime is 87691075697003. The next prime is 87691075697039. The reversal of 87691075697008 is 80079657019678.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87691075697003) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61324228 + ... + 62737891.
It is an arithmetic number, because the mean of its divisors is an integer number (4855096628928).
Almost surely, 287691075697008 is an apocalyptic number.
It is an amenable number.
87691075697008 is an abundant number, since it is smaller than the sum of its proper divisors (106512789460112).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87691075697008 is a wasteful number, since it uses less digits than its factorization.
87691075697008 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 124068445 (or 124068439 counting only the distinct ones).
The product of its (nonzero) digits is 320060160, while the sum is 73.
The spelling of 87691075697008 in words is "eighty-seven trillion, six hundred ninety-one billion, seventy-five million, six hundred ninety-seven thousand, eight".
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