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27093881 is a prime number
BaseRepresentation
bin110011101011…
…0101101111001
31212222111211002
41213112231321
523414001011
62404414345
7446202623
oct147265571
955874732
1027093881
1114326041
1290a73b5
1357c82a9
143853c13
1525a2c3b
hex19d6b79

27093881 has 2 divisors, whose sum is σ = 27093882. Its totient is φ = 27093880.

The previous prime is 27093863. The next prime is 27093893. The reversal of 27093881 is 18839072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18567481 + 8526400 = 4309^2 + 2920^2 .

It is a cyclic number.

It is not a de Polignac number, because 27093881 - 26 = 27093817 is a prime.

It is a super-2 number, since 2×270938812 = 1468156775284322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27093811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13546940 + 13546941.

It is an arithmetic number, because the mean of its divisors is an integer number (13546941).

Almost surely, 227093881 is an apocalyptic number.

It is an amenable number.

27093881 is a deficient number, since it is larger than the sum of its proper divisors (1).

27093881 is an equidigital number, since it uses as much as digits as its factorization.

27093881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 27093881 is about 5205.1782870522. The cubic root of 27093881 is about 300.3473051826.

The spelling of 27093881 in words is "twenty-seven million, ninety-three thousand, eight hundred eighty-one".