Base | Representation |
---|---|
bin | 100101101000011010… |
… | …1110101010001001110 |
3 | 21201121000021002211210 |
4 | 1023100311311101032 |
5 | 2311001133342303 |
6 | 101043002555250 |
7 | 5560424505444 |
oct | 1132065652116 |
9 | 251530232753 |
10 | 80813184078 |
11 | 312aaa32340 |
12 | 137b4208b26 |
13 | 780b752923 |
14 | 3ca8b76b94 |
15 | 217ea9c203 |
hex | 12d0d7544e |
80813184078 has 16 divisors (see below), whose sum is σ = 176319674496. Its totient is φ = 24488843640.
The previous prime is 80813184061. The next prime is 80813184079. The reversal of 80813184078 is 87048131808.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80813184079) 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, 612221026 + ... + 612221157.
It is an arithmetic number, because the mean of its divisors is an integer number (11019979656).
Almost surely, 280813184078 is an apocalyptic number.
80813184078 is an abundant number, since it is smaller than the sum of its proper divisors (95506490418).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80813184078 is a wasteful number, since it uses less digits than its factorization.
80813184078 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1224442199.
The product of its (nonzero) digits is 344064, while the sum is 48.
The spelling of 80813184078 in words is "eighty billion, eight hundred thirteen million, one hundred eighty-four thousand, seventy-eight".
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