Base | Representation |
---|---|
bin | 1001101001000… |
… | …01000010100000 |
3 | 12122011220120120 |
4 | 10310201002200 |
5 | 131201010210 |
6 | 12005240240 |
7 | 2001301104 |
oct | 464410240 |
9 | 178156516 |
10 | 80875680 |
11 | 4171a106 |
12 | 23103080 |
13 | 139a8b42 |
14 | aa53904 |
15 | 7178270 |
hex | 4d210a0 |
80875680 has 48 divisors (see below), whose sum is σ = 254759904. Its totient is φ = 21566720.
The previous prime is 80875651. The next prime is 80875699. The reversal of 80875680 is 8657808.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (48).
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, 83766 + ... + 84725.
It is an arithmetic number, because the mean of its divisors is an integer number (5307498).
Almost surely, 280875680 is an apocalyptic number.
80875680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.
It is an amenable number.
80875680 is an abundant number, since it is smaller than the sum of its proper divisors (173884224).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80875680 is a wasteful number, since it uses less digits than its factorization.
80875680 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 168509 (or 168501 counting only the distinct ones).
The product of its (nonzero) digits is 107520, while the sum is 42.
The square root of 80875680 is about 8993.0906811841. The cubic root of 80875680 is about 432.4533991467.
The spelling of 80875680 in words is "eighty million, eight hundred seventy-five thousand, six hundred eighty".
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