Base | Representation |
---|---|
bin | 101000100101101100… |
… | …0101010000011101111 |
3 | 22022222121122002211101 |
4 | 1101023120222003233 |
5 | 2412003002211342 |
6 | 104013113103531 |
7 | 6204002426665 |
oct | 1211330520357 |
9 | 268877562741 |
10 | 87164100847 |
11 | 33a6995408a |
12 | 14a870b7ba7 |
13 | 82b1435c45 |
14 | 430c410c35 |
15 | 24024003b7 |
hex | 144b62a0ef |
87164100847 has 8 divisors (see below), whose sum is σ = 87547497840. Its totient is φ = 86780883840.
The previous prime is 87164100823. The next prime is 87164100917. The reversal of 87164100847 is 74800146178.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 87164100847 - 227 = 87029883119 is a prime.
It is a super-2 number, since 2×871641008472 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 87164100797 and 87164100806.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87164100817) 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, 976428 + ... + 1061950.
It is an arithmetic number, because the mean of its divisors is an integer number (10943437230).
Almost surely, 287164100847 is an apocalyptic number.
87164100847 is a deficient number, since it is larger than the sum of its proper divisors (383396993).
87164100847 is a wasteful number, since it uses less digits than its factorization.
87164100847 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 89993.
The product of its (nonzero) digits is 301056, while the sum is 46.
The spelling of 87164100847 in words is "eighty-seven billion, one hundred sixty-four million, one hundred thousand, eight hundred forty-seven".
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