Base | Representation |
---|---|
bin | 1001100011111… |
… | …10000101000001 |
3 | 12120220222221211 |
4 | 10301332011001 |
5 | 131013130233 |
6 | 11543050121 |
7 | 1662521062 |
oct | 461760501 |
9 | 176828854 |
10 | 80208193 |
11 | 4130366a |
12 | 22a40941 |
13 | 13804090 |
14 | a91c569 |
15 | 70955cd |
hex | 4c7e141 |
80208193 has 24 divisors (see below), whose sum is σ = 94401272. Its totient is φ = 67682304.
The previous prime is 80208181. The next prime is 80208197. The reversal of 80208193 is 39180208.
It can be written as a sum of positive squares in 12 ways, for example, as 6385729 + 73822464 = 2527^2 + 8592^2 .
It is not a de Polignac number, because 80208193 - 217 = 80077121 is a prime.
It is not an unprimeable number, because it can be changed into a prime (80208197) 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, 138721 + ... + 139297.
Almost surely, 280208193 is an apocalyptic number.
It is an amenable number.
80208193 is a deficient number, since it is larger than the sum of its proper divisors (14193079).
80208193 is a wasteful number, since it uses less digits than its factorization.
80208193 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 661 (or 644 counting only the distinct ones).
The product of its (nonzero) digits is 3456, while the sum is 31.
The square root of 80208193 is about 8955.9026904048. The cubic root of 80208193 is about 431.2603960807.
The spelling of 80208193 in words is "eighty million, two hundred eight thousand, one hundred ninety-three".
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