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75006823 is a prime number
BaseRepresentation
bin1000111100010…
…00001101100111
312020010202000111
410132020031213
5123200204243
611235353451
71600355533
oct436101547
9166122014
1075006823
1139380811
1221152887
1312702748
149d66bc3
1568b939d
hex4788367

75006823 has 2 divisors, whose sum is σ = 75006824. Its totient is φ = 75006822.

The previous prime is 75006821. The next prime is 75006829. The reversal of 75006823 is 32860057.

It is a weak prime.

It is an emirp because it is prime and its reverse (32860057) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75006823 - 21 = 75006821 is a prime.

Together with 75006821, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75006821) 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, 37503411 + 37503412.

It is an arithmetic number, because the mean of its divisors is an integer number (37503412).

Almost surely, 275006823 is an apocalyptic number.

75006823 is a deficient number, since it is larger than the sum of its proper divisors (1).

75006823 is an equidigital number, since it uses as much as digits as its factorization.

75006823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 75006823 is about 8660.6479549743. The cubic root of 75006823 is about 421.7291205766.

The spelling of 75006823 in words is "seventy-five million, six thousand, eight hundred twenty-three".