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27055518255 = 32519211149971
BaseRepresentation
bin11001001100101000…
…100111001000101111
32120211112201201202200
4121030220213020233
5420402203041010
620232405352543
71645314052653
oct311450471057
976745651680
1027055518255
1110524153347
1252b0a08753
13272234b8cc
141449374a63
15a8539ecc0
hex64ca2722f

27055518255 has 48 divisors (see below), whose sum is σ = 49598739840. Its totient is φ = 13605278400.

The previous prime is 27055518253. The next prime is 27055518283. The reversal of 27055518255 is 55281555072.

27055518255 is a `hidden beast` number, since 2 + 70 + 5 + 551 + 8 + 25 + 5 = 666.

It is not a de Polignac number, because 27055518255 - 21 = 27055518253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 27055518255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27055518253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 105420 + ... + 255390.

It is an arithmetic number, because the mean of its divisors is an integer number (1033307080).

Almost surely, 227055518255 is an apocalyptic number.

27055518255 is a deficient number, since it is larger than the sum of its proper divisors (22543221585).

27055518255 is a wasteful number, since it uses less digits than its factorization.

27055518255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150212 (or 150209 counting only the distinct ones).

The product of its (nonzero) digits is 700000, while the sum is 45.

The spelling of 27055518255 in words is "twenty-seven billion, fifty-five million, five hundred eighteen thousand, two hundred fifty-five".

Divisors: 1 3 5 9 15 19 45 57 95 171 211 285 633 855 1055 1899 3165 4009 9495 12027 20045 36081 60135 149971 180405 449913 749855 1349739 2249565 2849449 6748695 8548347 14247245 25645041 31643881 42741735 94931643 128225205 158219405 284794929 474658215 601233739 1423974645 1803701217 3006168695 5411103651 9018506085 27055518255