Base | Representation |
---|---|
bin | 100100010101100010… |
… | …0000110010111101011 |
3 | 21110102011210112222002 |
4 | 1020223010012113223 |
5 | 2234302132000113 |
6 | 55503010321215 |
7 | 5431463155022 |
oct | 1105304062753 |
9 | 243364715862 |
10 | 78031906283 |
11 | 30102a82151 |
12 | 1315888920b |
13 | 748747c316 |
14 | 3ac36278b9 |
15 | 206a80ec58 |
hex | 122b1065eb |
78031906283 has 2 divisors, whose sum is σ = 78031906284. Its totient is φ = 78031906282.
The previous prime is 78031906247. The next prime is 78031906291. The reversal of 78031906283 is 38260913087.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 78031906283 - 26 = 78031906219 is a prime.
It is not a weakly prime, because it can be changed into another prime (78031906783) 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 as a sum of consecutive naturals, namely, 39015953141 + 39015953142.
It is an arithmetic number, because the mean of its divisors is an integer number (39015953142).
Almost surely, 278031906283 is an apocalyptic number.
78031906283 is a deficient number, since it is larger than the sum of its proper divisors (1).
78031906283 is an equidigital number, since it uses as much as digits as its factorization.
78031906283 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 435456, while the sum is 47.
The spelling of 78031906283 in words is "seventy-eight billion, thirty-one million, nine hundred six thousand, two hundred eighty-three".
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