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214163409 = 3614311621
BaseRepresentation
bin11001100001111…
…01111111010001
3112220222121222010
430300331333101
5414311212114
633130133133
75210234055
oct1460757721
9486877863
10214163409
11aa987159
125b8811a9
13354a5c15
142062bc65
1513c05c59
hexcc3dfd1

214163409 has 8 divisors (see below), whose sum is σ = 285622272. Its totient is φ = 142740080.

The previous prime is 214163401. The next prime is 214163429. The reversal of 214163409 is 904361412.

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 214163409 - 23 = 214163401 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (214163401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12619 + ... + 24239.

It is an arithmetic number, because the mean of its divisors is an integer number (35702784).

Almost surely, 2214163409 is an apocalyptic number.

It is an amenable number.

214163409 is a deficient number, since it is larger than the sum of its proper divisors (71458863).

214163409 is a wasteful number, since it uses less digits than its factorization.

214163409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17767.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 214163409 is about 14634.3229771657. The cubic root of 214163409 is about 598.2946101125.

The spelling of 214163409 in words is "two hundred fourteen million, one hundred sixty-three thousand, four hundred nine".

Divisors: 1 3 6143 11621 18429 34863 71387803 214163409