Base | Representation |
---|---|
bin | 101000100101010001… |
… | …1010100000001111011 |
3 | 22022221122022122120122 |
4 | 1101022203110001323 |
5 | 2411440412220422 |
6 | 104011453243455 |
7 | 6203442525503 |
oct | 1211243240173 |
9 | 268848278518 |
10 | 87150116987 |
11 | 33a61a7287a |
12 | 14a8249358b |
13 | 82ab57ac7b |
14 | 430a610a03 |
15 | 240108bd42 |
hex | 144a8d407b |
87150116987 has 4 divisors (see below), whose sum is σ = 88343954280. Its totient is φ = 85956279696.
The previous prime is 87150116981. The next prime is 87150117011. The reversal of 87150116987 is 78961105178.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 87150116987 - 24 = 87150116971 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (87150116981) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 596918537 + ... + 596918682.
It is an arithmetic number, because the mean of its divisors is an integer number (22085988570).
Almost surely, 287150116987 is an apocalyptic number.
87150116987 is a deficient number, since it is larger than the sum of its proper divisors (1193837293).
87150116987 is a wasteful number, since it uses less digits than its factorization.
87150116987 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1193837292.
The product of its (nonzero) digits is 846720, while the sum is 53.
The spelling of 87150116987 in words is "eighty-seven billion, one hundred fifty million, one hundred sixteen thousand, nine hundred eighty-seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •