Base | Representation |
---|---|
bin | 1101001100000011… |
… | …00101011111110001 |
3 | 200021110000122001200 |
4 | 12212001211133301 |
5 | 104000040312011 |
6 | 3130325321413 |
7 | 340313262111 |
oct | 64601453761 |
9 | 20243018050 |
10 | 7080400881 |
11 | 3003779a84 |
12 | 1457266269 |
13 | 88ab76928 |
14 | 4b24c9041 |
15 | 2b68eb856 |
hex | 1a60657f1 |
7080400881 has 12 divisors (see below), whose sum is σ = 10295886900. Its totient is φ = 4688586720.
The previous prime is 7080400871. The next prime is 7080400903. The reversal of 7080400881 is 1880040807.
It can be written as a sum of positive squares in 2 ways, for example, as 3694208400 + 3386192481 = 60780^2 + 58191^2 .
It is not a de Polignac number, because 7080400881 - 217 = 7080269809 is a prime.
It is a super-2 number, since 2×70804008812 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (7080400861) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2638630 + ... + 2641311.
It is an arithmetic number, because the mean of its divisors is an integer number (857990575).
Almost surely, 27080400881 is an apocalyptic number.
It is an amenable number.
7080400881 is a deficient number, since it is larger than the sum of its proper divisors (3215486019).
7080400881 is a wasteful number, since it uses less digits than its factorization.
7080400881 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5280096 (or 5280093 counting only the distinct ones).
The product of its (nonzero) digits is 14336, while the sum is 36.
The square root of 7080400881 is about 84145.1179867258. The cubic root of 7080400881 is about 1920.2271939809.
The spelling of 7080400881 in words is "seven billion, eighty million, four hundred thousand, eight hundred eighty-one".
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