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213272371 = 1353309539
BaseRepresentation
bin11001011011001…
…00011100110011
3112212022100200201
430231210130303
5414044203441
633055100031
75166533224
oct1455443463
9485270621
10213272371
11aa428764
125b511617
1335253490
142047924b
1513acbc31
hexcb64733

213272371 has 8 divisors (see below), whose sum is σ = 234012240. Its totient is φ = 193151712.

The previous prime is 213272369. The next prime is 213272383. The reversal of 213272371 is 173272312.

It is a happy number.

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

It is not a de Polignac number, because 213272371 - 21 = 213272369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213272341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154081 + ... + 155458.

It is an arithmetic number, because the mean of its divisors is an integer number (29251530).

Almost surely, 2213272371 is an apocalyptic number.

213272371 is a deficient number, since it is larger than the sum of its proper divisors (20739869).

213272371 is a wasteful number, since it uses less digits than its factorization.

213272371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309605.

The product of its digits is 3528, while the sum is 28.

The square root of 213272371 is about 14603.8478148740. The cubic root of 213272371 is about 597.4637114332.

The spelling of 213272371 in words is "two hundred thirteen million, two hundred seventy-two thousand, three hundred seventy-one".

Divisors: 1 13 53 689 309539 4024007 16405567 213272371