Base | Representation |
---|---|
bin | 110000001001101… |
… | …001010111001001 |
3 | 2002022002021101211 |
4 | 300021221113021 |
5 | 3123301210311 |
6 | 212054413121 |
7 | 26006325214 |
oct | 6011512711 |
9 | 2068067354 |
10 | 807835081 |
11 | 3850024a9 |
12 | 1a66611a1 |
13 | cb497231 |
14 | 7940877b |
15 | 4adc3821 |
hex | 302695c9 |
807835081 has 2 divisors, whose sum is σ = 807835082. Its totient is φ = 807835080.
The previous prime is 807835001. The next prime is 807835129. The reversal of 807835081 is 180538708.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 807469056 + 366025 = 28416^2 + 605^2 .
It is a cyclic number.
It is not a de Polignac number, because 807835081 - 29 = 807834569 is a prime.
It is a super-2 number, since 2×8078350812 = 1305195036188553122, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (807835001) 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 as a sum of consecutive naturals, namely, 403917540 + 403917541.
It is an arithmetic number, because the mean of its divisors is an integer number (403917541).
Almost surely, 2807835081 is an apocalyptic number.
It is an amenable number.
807835081 is a deficient number, since it is larger than the sum of its proper divisors (1).
807835081 is an equidigital number, since it uses as much as digits as its factorization.
807835081 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 53760, while the sum is 40.
The square root of 807835081 is about 28422.4397439769. The cubic root of 807835081 is about 931.3385284906.
The spelling of 807835081 in words is "eight hundred seven million, eight hundred thirty-five thousand, eighty-one".
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