Base | Representation |
---|---|
bin | 100101010000110010… |
… | …0100010001000111010 |
3 | 21122112201222021121200 |
4 | 1022201210202020322 |
5 | 2302340122320442 |
6 | 100432152515030 |
7 | 5531654540565 |
oct | 1124144421072 |
9 | 248481867550 |
10 | 80020120122 |
11 | 30a332a9688 |
12 | 136126aba76 |
13 | 771335ab07 |
14 | 3c316d54dc |
15 | 213514534c |
hex | 12a192223a |
80020120122 has 48 divisors (see below), whose sum is σ = 175080102912. Its totient is φ = 26412160320.
The previous prime is 80020120093. The next prime is 80020120129. The reversal of 80020120122 is 22102102008.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 80020120095 and 80020120104.
It is not an unprimeable number, because it can be changed into a prime (80020120129) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1157413 + ... + 1224599.
It is an arithmetic number, because the mean of its divisors is an integer number (3647502144).
Almost surely, 280020120122 is an apocalyptic number.
80020120122 is an abundant number, since it is smaller than the sum of its proper divisors (95059982790).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80020120122 is a wasteful number, since it uses less digits than its factorization.
80020120122 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 67843 (or 67840 counting only the distinct ones).
The product of its (nonzero) digits is 128, while the sum is 18.
The spelling of 80020120122 in words is "eighty billion, twenty million, one hundred twenty thousand, one hundred twenty-two".
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