Base | Representation |
---|---|
bin | 1101000100110… |
… | …01011101100111 |
3 | 21122101100100021 |
4 | 12202121131213 |
5 | 211034233422 |
6 | 14514500011 |
7 | 2501161120 |
oct | 642313547 |
9 | 248340307 |
10 | 109680487 |
11 | 56a03634 |
12 | 30894607 |
13 | 19952ac7 |
14 | 107d1047 |
15 | 9967dc7 |
hex | 6899767 |
109680487 has 16 divisors (see below), whose sum is σ = 129479680. Its totient is φ = 90955872.
The previous prime is 109680463. The next prime is 109680497. The reversal of 109680487 is 784086901.
It is not a de Polignac number, because 109680487 - 27 = 109680359 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (43).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (109680427) 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, 31138 + ... + 34480.
It is an arithmetic number, because the mean of its divisors is an integer number (8092480).
Almost surely, 2109680487 is an apocalyptic number.
109680487 is the 6047-th hex number.
109680487 is a deficient number, since it is larger than the sum of its proper divisors (19799193).
109680487 is a wasteful number, since it uses less digits than its factorization.
109680487 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3502.
The product of its (nonzero) digits is 96768, while the sum is 43.
The square root of 109680487 is about 10472.8452199008. The cubic root of 109680487 is about 478.6776203731.
The spelling of 109680487 in words is "one hundred nine million, six hundred eighty thousand, four hundred eighty-seven".
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