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27069797 = 171592341
BaseRepresentation
bin110011101000…
…0110101100101
31212221021210002
41213100311211
523412213142
62404111045
7446042456
oct147206545
955837702
1027069797
1114309a37
129095485
1357ba341
14384912d
15259aa32
hex19d0d65

27069797 has 4 divisors (see below), whose sum is σ = 28662156. Its totient is φ = 25477440.

The previous prime is 27069793. The next prime is 27069821. The reversal of 27069797 is 79796072.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11498881 + 15570916 = 3391^2 + 3946^2 .

It is a cyclic number.

It is not a de Polignac number, because 27069797 - 22 = 27069793 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27069793) 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 in 3 ways as a sum of consecutive naturals, for example, 796154 + ... + 796187.

It is an arithmetic number, because the mean of its divisors is an integer number (7165539).

Almost surely, 227069797 is an apocalyptic number.

It is an amenable number.

27069797 is a deficient number, since it is larger than the sum of its proper divisors (1592359).

27069797 is a wasteful number, since it uses less digits than its factorization.

27069797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592358.

The product of its (nonzero) digits is 333396, while the sum is 47.

The square root of 27069797 is about 5202.8643072831. The cubic root of 27069797 is about 300.2582849732.

The spelling of 27069797 in words is "twenty-seven million, sixty-nine thousand, seven hundred ninety-seven".

Divisors: 1 17 1592341 27069797