Base | Representation |
---|---|
bin | 100101011111011110… |
… | …0101100101011111100 |
3 | 21200211002101212112101 |
4 | 1022332330230223330 |
5 | 2304342311302134 |
6 | 100553120514444 |
7 | 5550121105030 |
oct | 1127674545374 |
9 | 250732355471 |
10 | 80512994044 |
11 | 311665390aa |
12 | 1372b77ba24 |
13 | 77914b94a2 |
14 | 3c7ad541c0 |
15 | 2163551e14 |
hex | 12bef2cafc |
80512994044 has 24 divisors (see below), whose sum is σ = 161042743008. Its totient is φ = 34501978560.
The previous prime is 80512994033. The next prime is 80512994173. The reversal of 80512994044 is 44049921508.
It is a junction number, because it is equal to n+sod(n) for n = 80512993985 and 80512994003.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133722 + ... + 422974.
It is an arithmetic number, because the mean of its divisors is an integer number (6710114292).
Almost surely, 280512994044 is an apocalyptic number.
It is an amenable number.
80512994044 is an abundant number, since it is smaller than the sum of its proper divisors (80529748964).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80512994044 is a wasteful number, since it uses less digits than its factorization.
80512994044 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 299205 (or 299203 counting only the distinct ones).
The product of its (nonzero) digits is 414720, while the sum is 46.
The spelling of 80512994044 in words is "eighty billion, five hundred twelve million, nine hundred ninety-four thousand, forty-four".
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