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27420207 = 315758217
BaseRepresentation
bin110100010011…
…0011000101111
31220121002110020
41220212120233
524004421312
62415413223
7452032203
oct150463057
956532406
1027420207
1114529231
129224213
1358b0999
1438dab03
15261978c
hex1a2662f

27420207 has 8 divisors (see below), whose sum is σ = 36793776. Its totient is φ = 18163392.

The previous prime is 27420193. The next prime is 27420229. The reversal of 27420207 is 70202472.

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

It is not a de Polignac number, because 27420207 - 26 = 27420143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27420007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28638 + ... + 29579.

It is an arithmetic number, because the mean of its divisors is an integer number (4599222).

Almost surely, 227420207 is an apocalyptic number.

27420207 is a deficient number, since it is larger than the sum of its proper divisors (9373569).

27420207 is a wasteful number, since it uses less digits than its factorization.

27420207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58377.

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 27420207 is about 5236.4307500434. The cubic root of 27420207 is about 301.5483175178.

Adding to 27420207 its reverse (70202472), we get a palindrome (97622679).

The spelling of 27420207 in words is "twenty-seven million, four hundred twenty thousand, two hundred seven".

Divisors: 1 3 157 471 58217 174651 9140069 27420207