Base | Representation |
---|---|
bin | 100110011001110111… |
… | …1100001000100110001 |
3 | 21212212122111201011122 |
4 | 1030303233201010301 |
5 | 2322400423113011 |
6 | 101515355152025 |
7 | 5646513311231 |
oct | 1146357410461 |
9 | 255778451148 |
10 | 82472472881 |
11 | 31a816195a7 |
12 | 13b97a45615 |
13 | 7a14446a16 |
14 | 3dc52a1cc1 |
15 | 222a5ad3db |
hex | 1333be1131 |
82472472881 has 8 divisors (see below), whose sum is σ = 85642658304. Its totient is φ = 79334148960.
The previous prime is 82472472869. The next prime is 82472472883. The reversal of 82472472881 is 18827427428.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 82472472881 - 210 = 82472471857 is a prime.
It is a super-2 number, since 2×824724728812 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (82472472883) 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, 7960100 + ... + 7970453.
It is an arithmetic number, because the mean of its divisors is an integer number (10705332288).
Almost surely, 282472472881 is an apocalyptic number.
It is an amenable number.
82472472881 is a deficient number, since it is larger than the sum of its proper divisors (3170185423).
82472472881 is a wasteful number, since it uses less digits than its factorization.
82472472881 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15930751.
The product of its digits is 3211264, while the sum is 53.
The spelling of 82472472881 in words is "eighty-two billion, four hundred seventy-two million, four hundred seventy-two thousand, eight hundred eighty-one".
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