Base | Representation |
---|---|
bin | 101000110100111100… |
… | …1001101000010100101 |
3 | 22101022021202200210120 |
4 | 1101221321031002211 |
5 | 2414030020333341 |
6 | 104135555512153 |
7 | 6222456162210 |
oct | 1215171150245 |
9 | 271267680716 |
10 | 87675949221 |
11 | 34201873373 |
12 | 14baa5b8659 |
13 | 83634a8cc3 |
14 | 435a3ac777 |
15 | 2432309066 |
hex | 1469e4d0a5 |
87675949221 has 8 divisors (see below), whose sum is σ = 133601446464. Its totient is φ = 50100542400.
The previous prime is 87675949201. The next prime is 87675949241. The reversal of 87675949221 is 12294957678.
It is an interprime number because it is at equal distance from previous prime (87675949201) and next prime (87675949241).
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 87675949221 - 26 = 87675949157 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87675949201) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2087522580 + ... + 2087522621.
It is an arithmetic number, because the mean of its divisors is an integer number (16700180808).
Almost surely, 287675949221 is an apocalyptic number.
It is an amenable number.
87675949221 is a deficient number, since it is larger than the sum of its proper divisors (45925497243).
87675949221 is a wasteful number, since it uses less digits than its factorization.
87675949221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4175045211.
The product of its digits is 15240960, while the sum is 60.
The spelling of 87675949221 in words is "eighty-seven billion, six hundred seventy-five million, nine hundred forty-nine thousand, two hundred twenty-one".
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