Base | Representation |
---|---|
bin | 100101100011011000… |
… | …0011110000101101000 |
3 | 21201011012220222111020 |
4 | 1023012300132011220 |
5 | 2310124331144443 |
6 | 101014120532440 |
7 | 5553301512561 |
oct | 1130660360550 |
9 | 251135828436 |
10 | 80644006248 |
11 | 31223491553 |
12 | 13767621120 |
13 | 77b269a8c0 |
14 | 3c904d9168 |
15 | 216ecd0583 |
hex | 12c6c1e168 |
80644006248 has 64 divisors (see below), whose sum is σ = 218255385600. Its totient is φ = 24683608320.
The previous prime is 80644006237. The next prime is 80644006253. The reversal of 80644006248 is 84260044608.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 617043 + ... + 736226.
It is an arithmetic number, because the mean of its divisors is an integer number (3410240400).
Almost surely, 280644006248 is an apocalyptic number.
It is an amenable number.
80644006248 is an abundant number, since it is smaller than the sum of its proper divisors (137611379352).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80644006248 is a wasteful number, since it uses less digits than its factorization.
80644006248 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1353482 (or 1353478 counting only the distinct ones).
The product of its (nonzero) digits is 294912, while the sum is 42.
The spelling of 80644006248 in words is "eighty billion, six hundred forty-four million, six thousand, two hundred forty-eight".
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