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27997083 = 34345643
BaseRepresentation
bin110101011001…
…1001110011011
31221200101210000
41222303032123
524131401313
62440024043
7456654102
oct152631633
957611700
1027997083
1114892694
129462023
135a5342a
143a0b039
1526d0673
hex1ab339b

27997083 has 10 divisors (see below), whose sum is σ = 41822924. Its totient is φ = 18664668.

The previous prime is 27997069. The next prime is 27997087. The reversal of 27997083 is 38079972.

It is not a de Polignac number, because 27997083 - 26 = 27997019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27997087) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 172741 + ... + 172902.

Almost surely, 227997083 is an apocalyptic number.

27997083 is a deficient number, since it is larger than the sum of its proper divisors (13825841).

27997083 is an equidigital number, since it uses as much as digits as its factorization.

27997083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345655 (or 345646 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 27997083 is about 5291.2269843582. The cubic root of 27997083 is about 303.6483519047.

The spelling of 27997083 in words is "twenty-seven million, nine hundred ninety-seven thousand, eighty-three".

Divisors: 1 3 9 27 81 345643 1036929 3110787 9332361 27997083