| Base | Representation |
|---|---|
| bin | 1001100010111… |
| … | …10110011010000 |
| 3 | 12120200111012220 |
| 4 | 10301132303100 |
| 5 | 131000030310 |
| 6 | 11540221040 |
| 7 | 1661445423 |
| oct | 461366320 |
| 9 | 176614186 |
| 10 | 80080080 |
| 11 | 41226393 |
| 12 | 2299a780 |
| 13 | 1378a982 |
| 14 | a8c79ba |
| 15 | 706c670 |
| hex | 4c5ecd0 |
80080080 has 40 divisors (see below), whose sum is σ = 248248992. Its totient is φ = 21354624.
The previous prime is 80080073. The next prime is 80080087. The reversal of 80080080 is 8008008.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (80080073) and next prime (80080087).
It is a tau number, because it is divible by the number of its divisors (40).
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.
80080080 is a modest number, since divided by 80080 gives 80 as remainder.
It is a self number, because there is not a number n which added to its sum of digits gives 80080080.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80080087) 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 7 ways as a sum of consecutive naturals, for example, 166594 + ... + 167073.
Almost surely, 280080080 is an apocalyptic number.
80080080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.
It is an amenable number.
80080080 is an abundant number, since it is smaller than the sum of its proper divisors (168168912).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80080080 is a wasteful number, since it uses less digits than its factorization.
80080080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 333683 (or 333677 counting only the distinct ones).
The product of its (nonzero) digits is 512, while the sum is 24.
The square root of 80080080 is about 8948.7473983793. The cubic root of 80080080 is about 431.0306626692.
Adding to 80080080 its reverse (8008008), we get a palindrome (88088088).
The spelling of 80080080 in words is "eighty million, eighty thousand, eighty".
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