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27045684105 = 3511163913237
BaseRepresentation
bin11001001100000011…
…000110001110001001
32120210212020002211220
4121030003012032021
5420342143342410
620231414512253
71645134343656
oct311403061611
976725202756
1027045684105
1110519646850
1252a9665689
1327202b769b
141447d34c2d
15a845ab070
hex64c0c6389

27045684105 has 16 divisors (see below), whose sum is σ = 47207012544. Its totient is φ = 13113058880.

The previous prime is 27045684091. The next prime is 27045684179. The reversal of 27045684105 is 50148654072.

It is a happy number.

It is not a de Polignac number, because 27045684105 - 29 = 27045683593 is a prime.

It is a Curzon 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, 81956454 + ... + 81956783.

It is an arithmetic number, because the mean of its divisors is an integer number (2950438284).

Almost surely, 227045684105 is an apocalyptic number.

It is an amenable number.

27045684105 is a deficient number, since it is larger than the sum of its proper divisors (20161328439).

27045684105 is a wasteful number, since it uses less digits than its factorization.

27045684105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163913256.

The product of its (nonzero) digits is 268800, while the sum is 42.

The spelling of 27045684105 in words is "twenty-seven billion, forty-five million, six hundred eighty-four thousand, one hundred five".

Divisors: 1 3 5 11 15 33 55 165 163913237 491739711 819566185 1803045607 2458698555 5409136821 9015228035 27045684105