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213322047 = 3109652361
BaseRepresentation
bin11001011011100…
…00100100111111
3112212101212211120
430231300210333
5414102301142
633100122023
75200131111
oct1455604477
9485355746
10213322047
11aa462014
125b536313
133526cc83
142048d3b1
1513adb7ec
hexcb7093f

213322047 has 8 divisors (see below), whose sum is σ = 287039280. Its totient is φ = 140909760.

The previous prime is 213322009. The next prime is 213322061. The reversal of 213322047 is 740223312.

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

It is not a de Polignac number, because 213322047 - 27 = 213321919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213322007) 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, 325854 + ... + 326507.

It is an arithmetic number, because the mean of its divisors is an integer number (35879910).

Almost surely, 2213322047 is an apocalyptic number.

213322047 is a deficient number, since it is larger than the sum of its proper divisors (73717233).

213322047 is a wasteful number, since it uses less digits than its factorization.

213322047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652473.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 213322047 is about 14605.5485004843. The cubic root of 213322047 is about 597.5100954743.

Adding to 213322047 its reverse (740223312), we get a palindrome (953545359).

The spelling of 213322047 in words is "two hundred thirteen million, three hundred twenty-two thousand, forty-seven".

Divisors: 1 3 109 327 652361 1957083 71107349 213322047