Base | Representation |
---|---|
bin | 100101010000110010… |
… | …1011111101010011010 |
3 | 21122112202110002022000 |
4 | 1022201211133222122 |
5 | 2302340203401442 |
6 | 100432202141430 |
7 | 5531656640355 |
oct | 1124145375232 |
9 | 248482402260 |
10 | 80020372122 |
11 | 30a33460a49 |
12 | 136127b1876 |
13 | 7713418722 |
14 | 3c3175d29c |
15 | 2135194d4c |
hex | 12a195fa9a |
80020372122 has 32 divisors (see below), whose sum is σ = 185554488960. Its totient is φ = 25513741440.
The previous prime is 80020372109. The next prime is 80020372139. The reversal of 80020372122 is 22127302008.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32213079 + ... + 32215562.
It is an arithmetic number, because the mean of its divisors is an integer number (5798577780).
Almost surely, 280020372122 is an apocalyptic number.
80020372122 is an abundant number, since it is smaller than the sum of its proper divisors (105534116838).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80020372122 is a wasteful number, since it uses less digits than its factorization.
80020372122 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 64428675 (or 64428669 counting only the distinct ones).
The product of its (nonzero) digits is 2688, while the sum is 27.
The spelling of 80020372122 in words is "eighty billion, twenty million, three hundred seventy-two thousand, one hundred twenty-two".
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