Base | Representation |
---|---|
bin | 101000101001001110… |
… | …0010001000111010001 |
3 | 22100021212101210010220 |
4 | 1101102130101013101 |
5 | 2412223304102021 |
6 | 104032542343253 |
7 | 6206640622230 |
oct | 1212234210721 |
9 | 270255353126 |
10 | 87282487761 |
11 | 3401a763a07 |
12 | 14aba88ab29 |
13 | 82ccb16881 |
14 | 432002ab17 |
15 | 240c9d7cc6 |
hex | 14527111d1 |
87282487761 has 8 divisors (see below), whose sum is σ = 133001886144. Its totient is φ = 49875707280.
The previous prime is 87282487727. The next prime is 87282487807. The reversal of 87282487761 is 16778428278.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 87282487761 - 215 = 87282454993 is a prime.
It is a super-2 number, since 2×872824877612 (a number of 23 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 87282487695 and 87282487704.
It is not an unprimeable number, because it can be changed into a prime (87282487361) 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, 2078154450 + ... + 2078154491.
It is an arithmetic number, because the mean of its divisors is an integer number (16625235768).
Almost surely, 287282487761 is an apocalyptic number.
It is an amenable number.
87282487761 is a deficient number, since it is larger than the sum of its proper divisors (45719398383).
87282487761 is a wasteful number, since it uses less digits than its factorization.
87282487761 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4156308951.
The product of its digits is 16859136, while the sum is 60.
The spelling of 87282487761 in words is "eighty-seven billion, two hundred eighty-two million, four hundred eighty-seven thousand, seven hundred sixty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.065 sec. • engine limits •