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27185138 = 261443503
BaseRepresentation
bin110011110110…
…0111111110010
31220011010222222
41213230333302
523424411023
62410401042
7450032651
oct147547762
956133888
1027185138
1114388662
129130182
13582a9a6
143879198
1525becc8
hex19ecff2

27185138 has 16 divisors (see below), whose sum is σ = 41622336. Its totient is φ = 13313040.

The previous prime is 27185117. The next prime is 27185141. The reversal of 27185138 is 83158172.

It is a junction number, because it is equal to n+sod(n) for n = 27185098 and 27185107.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 53795 + ... + 54297.

It is an arithmetic number, because the mean of its divisors is an integer number (2601396).

Almost surely, 227185138 is an apocalyptic number.

27185138 is a deficient number, since it is larger than the sum of its proper divisors (14437198).

27185138 is a wasteful number, since it uses less digits than its factorization.

27185138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009.

The product of its digits is 13440, while the sum is 35.

The square root of 27185138 is about 5213.9369002703. The cubic root of 27185138 is about 300.6841349748.

The spelling of 27185138 in words is "twenty-seven million, one hundred eighty-five thousand, one hundred thirty-eight".

Divisors: 1 2 61 122 443 503 886 1006 27023 30683 54046 61366 222829 445658 13592569 27185138