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27995090 = 2517164677
BaseRepresentation
bin110101011001…
…0101111010010
31221200022001012
41222302233102
524131320330
62440010522
7456645224
oct152625722
957608035
1027995090
1114891142
129460a42
135a52556
143a0a414
1526cec95
hex1ab2bd2

27995090 has 16 divisors (see below), whose sum is σ = 53355672. Its totient is φ = 10539264.

The previous prime is 27995083. The next prime is 27995101. The reversal of 27995090 is 9059972.

It can be written as a sum of positive squares in 4 ways, for example, as 27678121 + 316969 = 5261^2 + 563^2 .

It is a super-4 number, since 4×279950904 (a number of 31 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82169 + ... + 82508.

Almost surely, 227995090 is an apocalyptic number.

27995090 is a deficient number, since it is larger than the sum of its proper divisors (25360582).

27995090 is a wasteful number, since it uses less digits than its factorization.

27995090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164701.

The product of its (nonzero) digits is 51030, while the sum is 41.

The square root of 27995090 is about 5291.0386503975. The cubic root of 27995090 is about 303.6411465644.

The spelling of 27995090 in words is "twenty-seven million, nine hundred ninety-five thousand, ninety".

Divisors: 1 2 5 10 17 34 85 170 164677 329354 823385 1646770 2799509 5599018 13997545 27995090