Base | Representation |
---|---|
bin | 1001100011111… |
… | …10010000010001 |
3 | 12120221000221111 |
4 | 10301332100101 |
5 | 131013141123 |
6 | 11543053321 |
7 | 1662523141 |
oct | 461762021 |
9 | 176830844 |
10 | 80208913 |
11 | 41304164 |
12 | 22a41241 |
13 | 138044c5 |
14 | a91c921 |
15 | 709590d |
hex | 4c7e411 |
80208913 has 8 divisors (see below), whose sum is σ = 81608256. Its totient is φ = 78817200.
The previous prime is 80208871. The next prime is 80208917. The reversal of 80208913 is 31980208.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-80208913 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (80208917) 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, 21795 + ... + 25207.
It is an arithmetic number, because the mean of its divisors is an integer number (10201032).
Almost surely, 280208913 is an apocalyptic number.
It is an amenable number.
80208913 is a deficient number, since it is larger than the sum of its proper divisors (1399343).
80208913 is a wasteful number, since it uses less digits than its factorization.
80208913 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3815.
The product of its (nonzero) digits is 3456, while the sum is 31.
The square root of 80208913 is about 8955.9428872676. The cubic root of 80208913 is about 431.2616864998.
The spelling of 80208913 in words is "eighty million, two hundred eight thousand, nine hundred thirteen".
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