Base | Representation |
---|---|
bin | 1001010011010… |
… | …11100001110001 |
3 | 12102211120222022 |
4 | 10221223201301 |
5 | 124434110212 |
6 | 11424321225 |
7 | 1635200312 |
oct | 451534161 |
9 | 172746868 |
10 | 78035057 |
11 | 40059991 |
12 | 22173215 |
13 | 13222bb9 |
14 | a514609 |
15 | 6cb6772 |
hex | 4a6b871 |
78035057 has 2 divisors, whose sum is σ = 78035058. Its totient is φ = 78035056.
The previous prime is 78035053. The next prime is 78035081. The reversal of 78035057 is 75053087.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 44209201 + 33825856 = 6649^2 + 5816^2 .
It is an emirp because it is prime and its reverse (75053087) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 78035057 - 22 = 78035053 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (78035053) 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, 39017528 + 39017529.
It is an arithmetic number, because the mean of its divisors is an integer number (39017529).
Almost surely, 278035057 is an apocalyptic number.
It is an amenable number.
78035057 is a deficient number, since it is larger than the sum of its proper divisors (1).
78035057 is an equidigital number, since it uses as much as digits as its factorization.
78035057 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 29400, while the sum is 35.
The square root of 78035057 is about 8833.7453551707. The cubic root of 78035057 is about 427.3298699478.
The spelling of 78035057 in words is "seventy-eight million, thirty-five thousand, fifty-seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.080 sec. • engine limits •