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27430473 = 371306213
BaseRepresentation
bin110100010100…
…0111001001001
31220121121112110
41220220321021
524010233343
62415532533
7452104140
oct150507111
956547473
1027430473
1114535a14
12922a149
1358b5565
143900757
15261c833
hex1a28e49

27430473 has 8 divisors (see below), whose sum is σ = 41798848. Its totient is φ = 15674544.

The previous prime is 27430463. The next prime is 27430493. The reversal of 27430473 is 37403472.

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

It is not a de Polignac number, because 27430473 - 25 = 27430441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27430473.

It is not an unprimeable number, because it can be changed into a prime (27430463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 653086 + ... + 653127.

It is an arithmetic number, because the mean of its divisors is an integer number (5224856).

Almost surely, 227430473 is an apocalyptic number.

It is an amenable number.

27430473 is a deficient number, since it is larger than the sum of its proper divisors (14368375).

27430473 is a wasteful number, since it uses less digits than its factorization.

27430473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306223.

The product of its (nonzero) digits is 14112, while the sum is 30.

The square root of 27430473 is about 5237.4109061635. The cubic root of 27430473 is about 301.5859455923.

The spelling of 27430473 in words is "twenty-seven million, four hundred thirty thousand, four hundred seventy-three".

Divisors: 1 3 7 21 1306213 3918639 9143491 27430473