Base | Representation |
---|---|
bin | 10011110111101100000011… |
… | …010111111111100100000001 |
3 | 102110102101020100212001120201 |
4 | 103313230003113333210001 |
5 | 42423243210041134100 |
6 | 505510144430005201 |
7 | 24256462424300236 |
oct | 2367540327774401 |
9 | 373371210761521 |
10 | 87389756193025 |
11 | 25932873141000 |
12 | 9974878646801 |
13 | 399ba84756b20 |
14 | 17819886c378d |
15 | a1831c56436a |
hex | 4f7b035ff901 |
87389756193025 has 192 divisors, whose sum is σ = 132935806563840. Its totient is φ = 56580467328000.
The previous prime is 87389756193007. The next prime is 87389756193067. The reversal of 87389756193025 is 52039165798378.
It is not a de Polignac number, because 87389756193025 - 27 = 87389756192897 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 12808109764 + ... + 12808116586.
It is an arithmetic number, because the mean of its divisors is an integer number (692373992520).
Almost surely, 287389756193025 is an apocalyptic number.
It is an amenable number.
87389756193025 is a deficient number, since it is larger than the sum of its proper divisors (45546050370815).
87389756193025 is a wasteful number, since it uses less digits than its factorization.
87389756193025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7929 (or 7902 counting only the distinct ones).
The product of its (nonzero) digits is 685843200, while the sum is 73.
The spelling of 87389756193025 in words is "eighty-seven trillion, three hundred eighty-nine billion, seven hundred fifty-six million, one hundred ninety-three thousand, twenty-five".
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