Base | Representation |
---|---|
bin | 1001101000001… |
… | …00100011000100 |
3 | 12121221222111100 |
4 | 10310010203010 |
5 | 131133241410 |
6 | 12002540100 |
7 | 2000303631 |
oct | 464044304 |
9 | 177858440 |
10 | 80758980 |
11 | 4164a465 |
12 | 23067630 |
13 | 139679a3 |
14 | aa23188 |
15 | 71538c0 |
hex | 4d048c4 |
80758980 has 72 divisors (see below), whose sum is σ = 255632832. Its totient is φ = 20598336.
The previous prime is 80758973. The next prime is 80758981. The reversal of 80758980 is 8985708.
It is a super-3 number, since 3×807589803 (a number of 25 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is not an unprimeable number, because it can be changed into a prime (80758981) 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, 5614 + ... + 13893.
It is an arithmetic number, because the mean of its divisors is an integer number (3550456).
Almost surely, 280758980 is an apocalyptic number.
It is an amenable number.
80758980 is an abundant number, since it is smaller than the sum of its proper divisors (174873852).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80758980 is a wasteful number, since it uses less digits than its factorization.
80758980 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19545 (or 19540 counting only the distinct ones).
The product of its (nonzero) digits is 161280, while the sum is 45.
The square root of 80758980 is about 8986.6000244809. The cubic root of 80758980 is about 432.2452953624.
The spelling of 80758980 in words is "eighty million, seven hundred fifty-eight thousand, nine hundred eighty".
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