Base | Representation |
---|---|
bin | 100101010010100110… |
… | …0010110000100010000 |
3 | 21122200222022121120210 |
4 | 1022211030112010100 |
5 | 2303001201404310 |
6 | 100442203204120 |
7 | 5533323213624 |
oct | 1124514260420 |
9 | 248628277523 |
10 | 80080888080 |
11 | 30a64634536 |
12 | 1362ab16640 |
13 | 7722b1649b |
14 | 3c397d3184 |
15 | 213a64a820 |
hex | 12a5316110 |
80080888080 has 80 divisors (see below), whose sum is σ = 250708757184. Its totient is φ = 21143462400.
The previous prime is 80080888061. The next prime is 80080888081. The reversal of 80080888080 is 8088808008.
It is a tau number, because it is divible by the number of its divisors (80).
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 (80080888081) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1627594 + ... + 1676073.
Almost surely, 280080888080 is an apocalyptic number.
80080888080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.
It is an amenable number.
80080888080 is an abundant number, since it is smaller than the sum of its proper divisors (170627869104).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80080888080 is a wasteful number, since it uses less digits than its factorization.
80080888080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3303784 (or 3303778 counting only the distinct ones).
The product of its (nonzero) digits is 262144, while the sum is 48.
It can be divided in two parts, 800808 and 88080, that added together give a palindrome (888888).
The spelling of 80080888080 in words is "eighty billion, eighty million, eight hundred eighty-eight thousand, eighty".
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