Base | Representation |
---|---|
bin | 100101010000100001… |
… | …0100011000100000000 |
3 | 21122112010012122121111 |
4 | 1022201002203010000 |
5 | 2302330332223013 |
6 | 100431233533104 |
7 | 5531516033521 |
oct | 1124102430400 |
9 | 248463178544 |
10 | 80011211008 |
11 | 30a29274083 |
12 | 1360b714194 |
13 | 771155b951 |
14 | 3c30456848 |
15 | 213448573d |
hex | 12a10a3100 |
80011211008 has 72 divisors (see below), whose sum is σ = 170779817880. Its totient is φ = 37279334400.
The previous prime is 80011210999. The next prime is 80011211029.
80011211008 is nontrivially palindromic in base 10.
It can be written as a sum of positive squares in 4 ways, for example, as 41864433664 + 38146777344 = 204608^2 + 195312^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 80011211008.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348538 + ... + 530566.
It is an arithmetic number, because the mean of its divisors is an integer number (2371941915).
Almost surely, 280011211008 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 80011211008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85389908940).
80011211008 is an abundant number, since it is smaller than the sum of its proper divisors (90768606872).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80011211008 is a wasteful number, since it uses less digits than its factorization.
80011211008 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 182163 (or 182149 counting only the distinct ones).
The product of its (nonzero) digits is 128, while the sum is 22.
The spelling of 80011211008 in words is "eighty billion, eleven million, two hundred eleven thousand, eight".
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