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27946986 = 2319245149
BaseRepresentation
bin110101010011…
…0111111101010
31221120212001120
41222212333222
524123300421
62435000110
7456355044
oct152467752
957525046
1027946986
1114858a91
129439036
135a366a2
1439d6a94
1526c08c6
hex1aa6fea

27946986 has 16 divisors (see below), whose sum is σ = 58836000. Its totient is φ = 8825328.

The previous prime is 27946969. The next prime is 27946991. The reversal of 27946986 is 68964972.

It is a happy number.

It is a Curzon number.

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, 122461 + ... + 122688.

It is an arithmetic number, because the mean of its divisors is an integer number (3677250).

Almost surely, 227946986 is an apocalyptic number.

27946986 is an abundant number, since it is smaller than the sum of its proper divisors (30889014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27946986 is a wasteful number, since it uses less digits than its factorization.

27946986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245173.

The product of its digits is 1306368, while the sum is 51.

The square root of 27946986 is about 5286.4908966156. The cubic root of 27946986 is about 303.4671311954.

The spelling of 27946986 in words is "twenty-seven million, nine hundred forty-six thousand, nine hundred eighty-six".

Divisors: 1 2 3 6 19 38 57 114 245149 490298 735447 1470894 4657831 9315662 13973493 27946986