Base | Representation |
---|---|
bin | 10111010100100000101… |
… | …00011110101110010000 |
3 | 2211121020221110220122101 |
4 | 23222100110132232100 |
5 | 101112013003024010 |
6 | 1412034430450144 |
7 | 111614410602016 |
oct | 13522024365620 |
9 | 2747227426571 |
10 | 801285204880 |
11 | 289906677196 |
12 | 10b364963954 |
13 | 5a73a304334 |
14 | 2aad4d148b6 |
15 | 15c9b05d73a |
hex | ba9051eb90 |
801285204880 has 160 divisors (see below), whose sum is σ = 1983135571200. Its totient is φ = 300231936000.
The previous prime is 801285204857. The next prime is 801285204883. The reversal of 801285204880 is 88402582108.
It is a super-3 number, since 3×8012852048803 (a number of 37 digits) contains 333 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 801285204880.
It is not an unprimeable number, because it can be changed into a prime (801285204883) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128800170 + ... + 128806390.
It is an arithmetic number, because the mean of its divisors is an integer number (12394597320).
Almost surely, 2801285204880 is an apocalyptic number.
801285204880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 801285204880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (991567785600).
801285204880 is an abundant number, since it is smaller than the sum of its proper divisors (1181850366320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
801285204880 is a wasteful number, since it uses less digits than its factorization.
801285204880 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7193 (or 7187 counting only the distinct ones).
The product of its (nonzero) digits is 327680, while the sum is 46.
Adding to 801285204880 its reverse (88402582108), we get a palindrome (889687786988).
The spelling of 801285204880 in words is "eight hundred one billion, two hundred eighty-five million, two hundred four thousand, eight hundred eighty".
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