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27445055 = 51117149197
BaseRepresentation
bin110100010110…
…0011100111111
31220122100112112
41220230130333
524011220210
62420124235
7452164511
oct150543477
956570475
1027445055
1114545970
12923667b
1358bc0a1
143905bb1
152621d05
hex1a2c73f

27445055 has 32 divisors (see below), whose sum is σ = 38491200. Its totient is φ = 18565120.

The previous prime is 27445037. The next prime is 27445079. The reversal of 27445055 is 55054472.

It is not a de Polignac number, because 27445055 - 222 = 23250751 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139217 + ... + 139413.

It is an arithmetic number, because the mean of its divisors is an integer number (1202850).

Almost surely, 227445055 is an apocalyptic number.

27445055 is a deficient number, since it is larger than the sum of its proper divisors (11046145).

27445055 is a wasteful number, since it uses less digits than its factorization.

27445055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379.

The product of its (nonzero) digits is 28000, while the sum is 32.

The square root of 27445055 is about 5238.8028212560. The cubic root of 27445055 is about 301.6393770104.

The spelling of 27445055 in words is "twenty-seven million, four hundred forty-five thousand, fifty-five".

Divisors: 1 5 11 17 55 85 149 187 197 745 935 985 1639 2167 2533 3349 8195 10835 12665 16745 27863 29353 36839 139315 146765 184195 322883 499001 1614415 2495005 5489011 27445055