Base | Representation |
---|---|
bin | 100101101000010100… |
… | …0100011110111110100 |
3 | 21201120202201100101010 |
4 | 1023100220203313310 |
5 | 2310444241024243 |
6 | 101042400232220 |
7 | 5560353105300 |
oct | 1132050436764 |
9 | 251522640333 |
10 | 80809704948 |
11 | 312a8a76425 |
12 | 137b300b670 |
13 | 780ab0517b |
14 | 3ca850cd00 |
15 | 217e611433 |
hex | 12d0a23df4 |
80809704948 has 36 divisors (see below), whose sum is σ = 219340629312. Its totient is φ = 23088486960.
The previous prime is 80809704947. The next prime is 80809704967. The reversal of 80809704948 is 84940790808.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80809704947) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68715148 + ... + 68716323.
Almost surely, 280809704948 is an apocalyptic number.
It is an amenable number.
80809704948 is an abundant number, since it is smaller than the sum of its proper divisors (138530924364).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80809704948 is a wasteful number, since it uses less digits than its factorization.
80809704948 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 137431492 (or 137431483 counting only the distinct ones).
The product of its (nonzero) digits is 4644864, while the sum is 57.
It can be divided in two parts, 8080 and 9704948, that added together give a triangular number (9713028 = T4407).
The spelling of 80809704948 in words is "eighty billion, eight hundred nine million, seven hundred four thousand, nine hundred forty-eight".
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