Base | Representation |
---|---|
bin | 100101100100001111… |
… | …1011010101011000000 |
3 | 21201020020122121020010 |
4 | 1023020133122223000 |
5 | 2310204302341430 |
6 | 101021040144520 |
7 | 5554103644551 |
oct | 1131037325300 |
9 | 251206577203 |
10 | 80673090240 |
11 | 31238946806 |
12 | 13775308140 |
13 | 77b8711972 |
14 | 3c9430a328 |
15 | 2172627cb0 |
hex | 12c87daac0 |
80673090240 has 112 divisors (see below), whose sum is σ = 256266379008. Its totient is φ = 21501963264.
The previous prime is 80673090221. The next prime is 80673090307. The reversal of 80673090240 is 4209037608.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1979509 + ... + 2019851.
Almost surely, 280673090240 is an apocalyptic number.
80673090240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 80673090240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128133189504).
80673090240 is an abundant number, since it is smaller than the sum of its proper divisors (175593288768).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80673090240 is a wasteful number, since it uses less digits than its factorization.
80673090240 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 42446 (or 42436 counting only the distinct ones).
The product of its (nonzero) digits is 72576, while the sum is 39.
The spelling of 80673090240 in words is "eighty billion, six hundred seventy-three million, ninety thousand, two hundred forty".
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