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27068505 = 35171011051
BaseRepresentation
bin110011101000…
…0100001011001
31212221020000020
41213100201121
523412143010
62404101053
7446035632
oct147204131
955836006
1027068505
1114308a72
129094789
1357b9889
143848889
15259a470
hex19d0859

27068505 has 32 divisors (see below), whose sum is σ = 46355328. Its totient is φ = 13440000.

The previous prime is 27068501. The next prime is 27068519. The reversal of 27068505 is 50586072.

It is a happy number.

It is not a de Polignac number, because 27068505 - 22 = 27068501 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27068501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25230 + ... + 26280.

It is an arithmetic number, because the mean of its divisors is an integer number (1448604).

Almost surely, 227068505 is an apocalyptic number.

It is an amenable number.

27068505 is a deficient number, since it is larger than the sum of its proper divisors (19286823).

27068505 is a wasteful number, since it uses less digits than its factorization.

27068505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 27068505 is about 5202.7401434244. The cubic root of 27068505 is about 300.2535079410.

It can be divided in two parts, 2706 and 8505, that added together give a palindrome (11211).

The spelling of 27068505 in words is "twenty-seven million, sixty-eight thousand, five hundred five".

Divisors: 1 3 5 15 17 51 85 101 255 303 505 1051 1515 1717 3153 5151 5255 8585 15765 17867 25755 53601 89335 106151 268005 318453 530755 1592265 1804567 5413701 9022835 27068505