Base | Representation |
---|---|
bin | 101000100001100101… |
… | …0101101110110111101 |
3 | 22022122000012110202102 |
4 | 1101003022231312331 |
5 | 2411212203304134 |
6 | 103551310034445 |
7 | 6200406511202 |
oct | 1210312556675 |
9 | 268560173672 |
10 | 87026228669 |
11 | 339a9045736 |
12 | 14a48aa8a25 |
13 | 828b9c2283 |
14 | 42d7da1ca9 |
15 | 23e526937e |
hex | 14432addbd |
87026228669 has 16 divisors (see below), whose sum is σ = 91949383680. Its totient is φ = 82236455280.
The previous prime is 87026228647. The next prime is 87026228677. The reversal of 87026228669 is 96682262078.
It is not a de Polignac number, because 87026228669 - 212 = 87026224573 is a prime.
It is a super-2 number, since 2×870262286692 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87026228369) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6016604 + ... + 6031050.
It is an arithmetic number, because the mean of its divisors is an integer number (5746836480).
Almost surely, 287026228669 is an apocalyptic number.
It is an amenable number.
87026228669 is a deficient number, since it is larger than the sum of its proper divisors (4923155011).
87026228669 is a wasteful number, since it uses less digits than its factorization.
87026228669 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19040.
The product of its (nonzero) digits is 6967296, while the sum is 56.
The spelling of 87026228669 in words is "eighty-seven billion, twenty-six million, two hundred twenty-eight thousand, six hundred sixty-nine".
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