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27982285 = 55999343
BaseRepresentation
bin110101010111…
…1100111001101
31221122122110221
41222233213031
524130413120
62435431341
7456563002
oct152574715
957578427
1027982285
1114882561
129455551
135a49786
143a058a9
1526cb0aa
hex1aaf9cd

27982285 has 8 divisors (see below), whose sum is σ = 33638400. Its totient is φ = 22346064.

The previous prime is 27982277. The next prime is 27982301. The reversal of 27982285 is 58228972.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27982285 - 23 = 27982277 is a prime.

It is a congruent 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, 1677 + ... + 7666.

It is an arithmetic number, because the mean of its divisors is an integer number (4204800).

Almost surely, 227982285 is an apocalyptic number.

It is an amenable number.

27982285 is a deficient number, since it is larger than the sum of its proper divisors (5656115).

27982285 is an equidigital number, since it uses as much as digits as its factorization.

27982285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9947.

The product of its digits is 161280, while the sum is 43.

The square root of 27982285 is about 5289.8284471238. The cubic root of 27982285 is about 303.5948441849.

The spelling of 27982285 in words is "twenty-seven million, nine hundred eighty-two thousand, two hundred eighty-five".

Divisors: 1 5 599 2995 9343 46715 5596457 27982285