Base | Representation |
---|---|
bin | 1001101001100… |
… | …11111110000101 |
3 | 12122022211221110 |
4 | 10310303332011 |
5 | 131211000341 |
6 | 12011035233 |
7 | 2002043136 |
oct | 464637605 |
9 | 178284843 |
10 | 80953221 |
11 | 41772398 |
12 | 2313bb19 |
13 | 13a0521b |
14 | aa73c8d |
15 | 7191216 |
hex | 4d33f85 |
80953221 has 8 divisors (see below), whose sum is σ = 107996224. Its totient is φ = 53939520.
The previous prime is 80953211. The next prime is 80953259. The reversal of 80953221 is 12235908.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 80953221 - 26 = 80953157 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80953211) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240 + ... + 12726.
It is an arithmetic number, because the mean of its divisors is an integer number (13499528).
Almost surely, 280953221 is an apocalyptic number.
It is an amenable number.
80953221 is a deficient number, since it is larger than the sum of its proper divisors (27043003).
80953221 is a wasteful number, since it uses less digits than its factorization.
80953221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14651.
The product of its (nonzero) digits is 4320, while the sum is 30.
The square root of 80953221 is about 8997.4007913397. The cubic root of 80953221 is about 432.5915624692.
The spelling of 80953221 in words is "eighty million, nine hundred fifty-three thousand, two hundred twenty-one".
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