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27316829897 = 789331132469
BaseRepresentation
bin11001011100001101…
…011011111011001001
32121111202102201221122
4121130031123323021
5421421102024042
620314342245025
71654636136330
oct313415337311
977452381848
1027316829897
1110648702685
125364426775
132764521b96
141471d56d17
15a9d2ba7d2
hex65c35bec9

27316829897 has 16 divisors (see below), whose sum is σ = 31665628800. Its totient is φ = 23081224320.

The previous prime is 27316829873. The next prime is 27316829941. The reversal of 27316829897 is 79892861372.

It is not a de Polignac number, because 27316829897 - 26 = 27316829833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27316829807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139979 + ... + 272447.

It is an arithmetic number, because the mean of its divisors is an integer number (1979101800).

Almost surely, 227316829897 is an apocalyptic number.

It is an amenable number.

27316829897 is a deficient number, since it is larger than the sum of its proper divisors (4348798903).

27316829897 is a wasteful number, since it uses less digits than its factorization.

27316829897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132896.

The product of its digits is 18289152, while the sum is 62.

The spelling of 27316829897 in words is "twenty-seven billion, three hundred sixteen million, eight hundred twenty-nine thousand, eight hundred ninety-seven".

Divisors: 1 7 89 331 623 2317 29459 132469 206213 927283 11789741 43847239 82528187 306930673 3902404271 27316829897