Base | Representation |
---|---|
bin | 100101011110110110… |
… | …1000111101001000000 |
3 | 21200202122011000110110 |
4 | 1022331231013221000 |
5 | 2304321441223203 |
6 | 100551053431320 |
7 | 5546445561324 |
oct | 1127555075100 |
9 | 250678130413 |
10 | 80492132928 |
11 | 3115578a909 |
12 | 1372479b540 |
13 | 778a09412c |
14 | 3c78283984 |
15 | 21617d0d03 |
hex | 12bdb47a40 |
80492132928 has 28 divisors (see below), whose sum is σ = 212968768880. Its totient is φ = 26830710912.
The previous prime is 80492132921. The next prime is 80492132951. The reversal of 80492132928 is 82923129408.
It is a Harshad number since it is a multiple of its sum of digits (48).
It is not an unprimeable number, because it can be changed into a prime (80492132921) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209614738 + ... + 209615121.
It is an arithmetic number, because the mean of its divisors is an integer number (7606027460).
Almost surely, 280492132928 is an apocalyptic number.
It is an amenable number.
80492132928 is an abundant number, since it is smaller than the sum of its proper divisors (132476635952).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80492132928 is a wasteful number, since it uses less digits than its factorization.
80492132928 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 419229874 (or 419229864 counting only the distinct ones).
The product of its (nonzero) digits is 497664, while the sum is 48.
The spelling of 80492132928 in words is "eighty billion, four hundred ninety-two million, one hundred thirty-two thousand, nine hundred twenty-eight".
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