Base | Representation |
---|---|
bin | 101000110011100110… |
… | …0101011001010100100 |
3 | 22101012010122220022012 |
4 | 1101213030223022210 |
5 | 2413431431043300 |
6 | 104131302253352 |
7 | 6221366562434 |
oct | 1214714531244 |
9 | 271163586265 |
10 | 87630721700 |
11 | 34189292255 |
12 | 14b97427258 |
13 | 8357001c62 |
14 | 43543982c4 |
15 | 242d373435 |
hex | 146732b2a4 |
87630721700 has 36 divisors (see below), whose sum is σ = 190174546800. Its totient is φ = 35049361440.
The previous prime is 87630721547. The next prime is 87630721709. The reversal of 87630721700 is 712703678.
It is not an unprimeable number, because it can be changed into a prime (87630721709) 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 11 ways as a sum of consecutive naturals, for example, 1479251 + ... + 1537349.
It is an arithmetic number, because the mean of its divisors is an integer number (5282626300).
Almost surely, 287630721700 is an apocalyptic number.
It is an amenable number.
87630721700 is an abundant number, since it is smaller than the sum of its proper divisors (102543825100).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87630721700 is a wasteful number, since it uses less digits than its factorization.
87630721700 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 73196 (or 73189 counting only the distinct ones).
The product of its (nonzero) digits is 98784, while the sum is 41.
The spelling of 87630721700 in words is "eighty-seven billion, six hundred thirty million, seven hundred twenty-one thousand, seven hundred".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.075 sec. • engine limits •