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27144470158 = 21321116073079
BaseRepresentation
bin11001010001111011…
…111011111010001110
32121001202002221211121
4121101323323322032
5421042441021113
620245304111154
71650444121651
oct312173737216
977052087747
1027144470158
111056a389213
1253167654ba
1327378c4780
1414570cb898
15a8d0c0e8d
hex651efbe8e

27144470158 has 32 divisors (see below), whose sum is σ = 44098306560. Its totient is φ = 12457035360.

The previous prime is 27144470149. The next prime is 27144470167. The reversal of 27144470158 is 85107444172.

It is an interprime number because it is at equal distance from previous prime (27144470149) and next prime (27144470167).

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8814463 + ... + 8817541.

It is an arithmetic number, because the mean of its divisors is an integer number (1378072080).

Almost surely, 227144470158 is an apocalyptic number.

27144470158 is a deficient number, since it is larger than the sum of its proper divisors (16953836402).

27144470158 is a wasteful number, since it uses less digits than its factorization.

27144470158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4912.

The product of its (nonzero) digits is 250880, while the sum is 43.

The spelling of 27144470158 in words is "twenty-seven billion, one hundred forty-four million, four hundred seventy thousand, one hundred fifty-eight".

Divisors: 1 2 13 26 211 422 1607 2743 3079 3214 5486 6158 20891 40027 41782 80054 339077 649669 678154 1299338 4408001 4947953 8445697 8816002 9895906 16891394 64323389 128646778 1044018083 2088036166 13572235079 27144470158