Base | Representation |
---|---|
bin | 101111110000101… |
… | …111111000111101 |
3 | 2001211210200020021 |
4 | 233300233320331 |
5 | 3120113330341 |
6 | 211302452141 |
7 | 25600002400 |
oct | 5760577075 |
9 | 2054720207 |
10 | 801308221 |
11 | 3813547aa |
12 | 1a4434051 |
13 | ca02049c |
14 | 785c9d37 |
15 | 4a5349d1 |
hex | 2fc2fe3d |
801308221 has 12 divisors (see below), whose sum is σ = 937025280. Its totient is φ = 683231640.
The previous prime is 801308191. The next prime is 801308231. The reversal of 801308221 is 122803108.
It is not a de Polignac number, because 801308221 - 213 = 801300029 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 (801308231) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33451 + ... + 52168.
It is an arithmetic number, because the mean of its divisors is an integer number (78085440).
Almost surely, 2801308221 is an apocalyptic number.
It is an amenable number.
801308221 is a deficient number, since it is larger than the sum of its proper divisors (135717059).
801308221 is a wasteful number, since it uses less digits than its factorization.
801308221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 85824 (or 85817 counting only the distinct ones).
The product of its (nonzero) digits is 768, while the sum is 25.
The square root of 801308221 is about 28307.3880992224. The cubic root of 801308221 is about 928.8235098116.
The spelling of 801308221 in words is "eight hundred one million, three hundred eight thousand, two hundred twenty-one".
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