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27944071 is a prime number
BaseRepresentation
bin110101010011…
…0010010000111
31221120201001121
41222212102013
524123202241
62434534411
7456343411
oct152462207
957521047
1027944071
1114856881
129437407
135a3526c
1439d59b1
1526bead1
hex1aa6487

27944071 has 2 divisors, whose sum is σ = 27944072. Its totient is φ = 27944070.

The previous prime is 27944017. The next prime is 27944087. The reversal of 27944071 is 17044972.

Together with previous prime (27944017) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27944071 - 217 = 27812999 is a prime.

It is a super-2 number, since 2×279440712 = 1561742208106082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27944971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13972035 + 13972036.

It is an arithmetic number, because the mean of its divisors is an integer number (13972036).

Almost surely, 227944071 is an apocalyptic number.

27944071 is a deficient number, since it is larger than the sum of its proper divisors (1).

27944071 is an equidigital number, since it uses as much as digits as its factorization.

27944071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 27944071 is about 5286.2151866908. The cubic root of 27944071 is about 303.4565798197.

The spelling of 27944071 in words is "twenty-seven million, nine hundred forty-four thousand, seventy-one".