Base | Representation |
---|---|
bin | 101000111101101001… |
… | …1111110000010001010 |
3 | 22102001122122110202022 |
4 | 1101323103332002022 |
5 | 2420124323201224 |
6 | 104224555204442 |
7 | 6232635115112 |
oct | 1217323760212 |
9 | 272048573668 |
10 | 87968178314 |
11 | 3434181a415 |
12 | 15070446722 |
13 | 83abbb5a23 |
14 | 438711c042 |
15 | 244ccd065e |
hex | 147b4fe08a |
87968178314 has 4 divisors (see below), whose sum is σ = 131952267474. Its totient is φ = 43984089156.
The previous prime is 87968178289. The next prime is 87968178329. The reversal of 87968178314 is 41387186978.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41387186978 = 2 ⋅20693593489.
It can be written as a sum of positive squares in only one way, i.e., 84928530625 + 3039647689 = 291425^2 + 55133^2 .
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21992044577 + ... + 21992044580.
Almost surely, 287968178314 is an apocalyptic number.
87968178314 is a deficient number, since it is larger than the sum of its proper divisors (43984089160).
87968178314 is a wasteful number, since it uses less digits than its factorization.
87968178314 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 43984089159.
The product of its digits is 16257024, while the sum is 62.
The spelling of 87968178314 in words is "eighty-seven billion, nine hundred sixty-eight million, one hundred seventy-eight thousand, three hundred fourteen".
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