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27860528869797 = 313254951733471
BaseRepresentation
bin1100101010110110010001…
…11011010011000110100101
310122122102220011022101202010
412111123020323103012211
512122431330342313142
6135130541131504433
75603566610006241
oct625331073230645
9118572804271663
1027860528869797
118971647251908
12315b6828b8119
13127130ca68700
146c465761b421
15334ab2746e9c
hex1956c8ed31a5

27860528869797 has 12 divisors (see below), whose sum is σ = 40224668901504. Its totient is φ = 17144940842640.

The previous prime is 27860528869759. The next prime is 27860528869799. The reversal of 27860528869797 is 79796882506872.

It is not a de Polignac number, because 27860528869797 - 216 = 27860528804261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27860528869799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27475866229 + ... + 27475867242.

It is an arithmetic number, because the mean of its divisors is an integer number (3352055741792).

Almost surely, 227860528869797 is an apocalyptic number.

It is an amenable number.

27860528869797 is a deficient number, since it is larger than the sum of its proper divisors (12364140031707).

27860528869797 is a wasteful number, since it uses less digits than its factorization.

27860528869797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54951733500 (or 54951733487 counting only the distinct ones).

The product of its (nonzero) digits is 10241925120, while the sum is 84.

The spelling of 27860528869797 in words is "twenty-seven trillion, eight hundred sixty billion, five hundred twenty-eight million, eight hundred sixty-nine thousand, seven hundred ninety-seven".

Divisors: 1 3 13 39 169 507 54951733471 164855200413 714372535123 2143117605369 9286842956599 27860528869797