Base | Representation |
---|---|
bin | 1001101000100… |
… | …00100010110001 |
3 | 12122001110220002 |
4 | 10310100202301 |
5 | 131141324423 |
6 | 12003555345 |
7 | 2000600111 |
oct | 464204261 |
9 | 178043802 |
10 | 80808113 |
11 | 41683371 |
12 | 2308bb55 |
13 | 13984169 |
14 | aa37041 |
15 | 7163228 |
hex | 4d108b1 |
80808113 has 4 divisors (see below), whose sum is σ = 80826480. Its totient is φ = 80789748.
The previous prime is 80808109. The next prime is 80808139. The reversal of 80808113 is 31180808.
It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 80808113 - 22 = 80808109 is a prime.
It is a super-2 number, since 2×808081132 = 13059902253241538, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (80808163) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1778 + ... + 12836.
It is an arithmetic number, because the mean of its divisors is an integer number (20206620).
Almost surely, 280808113 is an apocalyptic number.
It is an amenable number.
80808113 is a deficient number, since it is larger than the sum of its proper divisors (18367).
80808113 is a wasteful number, since it uses less digits than its factorization.
80808113 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18366.
The product of its (nonzero) digits is 1536, while the sum is 29.
The square root of 80808113 is about 8989.3332900722. Note that the first 3 decimals coincide. The cubic root of 80808113 is about 432.3329355755.
The spelling of 80808113 in words is "eighty million, eight hundred eight thousand, one hundred thirteen".
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