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213321201 = 3397179111
BaseRepresentation
bin11001011011100…
…00010111110001
3112212101211200020
430231300113301
5414102234301
633100114053
75200125462
oct1455602761
9485354606
10213321201
11aa461415
125b535929
133526c782
142048cd69
1513adb436
hexcb705f1

213321201 has 8 divisors (see below), whose sum is σ = 285146304. Its totient is φ = 141855120.

The previous prime is 213321181. The next prime is 213321223. The reversal of 213321201 is 102123312.

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

It is not a de Polignac number, because 213321201 - 29 = 213320689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213321001) 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, 88365 + ... + 90746.

It is an arithmetic number, because the mean of its divisors is an integer number (35643288).

Almost surely, 2213321201 is an apocalyptic number.

It is an amenable number.

213321201 is a deficient number, since it is larger than the sum of its proper divisors (71825103).

213321201 is a wasteful number, since it uses less digits than its factorization.

213321201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179511.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 213321201 is about 14605.5195388593. The cubic root of 213321201 is about 597.5093055979.

Adding to 213321201 its reverse (102123312), we get a palindrome (315444513).

The spelling of 213321201 in words is "two hundred thirteen million, three hundred twenty-one thousand, two hundred one".

Divisors: 1 3 397 1191 179111 537333 71107067 213321201