Base | Representation |
---|---|
bin | 110000001010011… |
… | …100101001100011 |
3 | 2002022110221120100 |
4 | 300022130221203 |
5 | 3123324421110 |
6 | 212103113443 |
7 | 26011161531 |
oct | 6012345143 |
9 | 2068427510 |
10 | 808045155 |
11 | 385136315 |
12 | 1a6742883 |
13 | cb53ba38 |
14 | 79461151 |
15 | 4ae15bc0 |
hex | 3029ca63 |
808045155 has 24 divisors (see below), whose sum is σ = 1427042448. Its totient is φ = 422824896.
The previous prime is 808045153. The next prime is 808045159. The reversal of 808045155 is 551540808.
808045155 is a `hidden beast` number, since 80 + 80 + 451 + 55 = 666.
It is not a de Polignac number, because 808045155 - 21 = 808045153 is a prime.
It is not an unprimeable number, because it can be changed into a prime (808045153) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 167017 + ... + 171786.
It is an arithmetic number, because the mean of its divisors is an integer number (59460102).
Almost surely, 2808045155 is an apocalyptic number.
808045155 is a deficient number, since it is larger than the sum of its proper divisors (618997293).
808045155 is a wasteful number, since it uses less digits than its factorization.
808045155 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 338867 (or 338864 counting only the distinct ones).
The product of its (nonzero) digits is 32000, while the sum is 36.
The square root of 808045155 is about 28426.1350696854. The cubic root of 808045155 is about 931.4192516719.
It can be divided in two parts, 8080 and 45155, that added together give a palindrome (53235).
The spelling of 808045155 in words is "eight hundred eight million, forty-five thousand, one hundred fifty-five".
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