Base | Representation |
---|---|
bin | 111011111011111011… |
… | …101100011110100111 |
3 | 20011010002200100120002 |
4 | 323323323230132213 |
5 | 2023300201201124 |
6 | 45322002131515 |
7 | 4435544200163 |
oct | 737373543647 |
9 | 204102610502 |
10 | 64356272039 |
11 | 2532548a794 |
12 | 10580950b9b |
13 | 60b811c857 |
14 | 3187267ca3 |
15 | 1a19e000ae |
hex | efbeec7a7 |
64356272039 has 2 divisors, whose sum is σ = 64356272040. Its totient is φ = 64356272038.
The previous prime is 64356271957. The next prime is 64356272041. The reversal of 64356272039 is 93027265346.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 64356272039 - 228 = 64087836583 is a prime.
Together with 64356272041, it forms a pair of twin primes.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 64356271984 and 64356272002.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (64356242039) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32178136019 + 32178136020.
It is an arithmetic number, because the mean of its divisors is an integer number (32178136020).
Almost surely, 264356272039 is an apocalyptic number.
64356272039 is a deficient number, since it is larger than the sum of its proper divisors (1).
64356272039 is an equidigital number, since it uses as much as digits as its factorization.
64356272039 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1632960, while the sum is 47.
The spelling of 64356272039 in words is "sixty-four billion, three hundred fifty-six million, two hundred seventy-two thousand, thirty-nine".
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