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213424211 = 711131012111
BaseRepresentation
bin11001011100010…
…01100001010011
3112212121001222102
430232021201103
5414114033321
633102231015
75201035010
oct1456114123
9485531872
10213424211
11aa521850
125b58546b
13352a7620
14204b8707
1513b0bc0b
hexcb89853

213424211 has 32 divisors (see below), whose sum is σ = 289529856. Its totient is φ = 151920000.

The previous prime is 213424193. The next prime is 213424223. The reversal of 213424211 is 112424312.

It is a cyclic number.

It is not a de Polignac number, because 213424211 - 214 = 213407827 is a prime.

It is a Smith number, since the sum of its digits (20) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (213424231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100046 + ... + 102156.

It is an arithmetic number, because the mean of its divisors is an integer number (9047808).

Almost surely, 2213424211 is an apocalyptic number.

213424211 is a deficient number, since it is larger than the sum of its proper divisors (76105645).

213424211 is a wasteful number, since it uses less digits than its factorization.

213424211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243.

The product of its digits is 384, while the sum is 20.

The square root of 213424211 is about 14609.0455198141. The cubic root of 213424211 is about 597.6054665808.

Adding to 213424211 its reverse (112424312), we get a palindrome (325848523).

It can be divided in two parts, 213 and 424211, that added together give a palindrome (424424).

The spelling of 213424211 in words is "two hundred thirteen million, four hundred twenty-four thousand, two hundred eleven".

Divisors: 1 7 11 13 77 91 101 143 707 1001 1111 1313 2111 7777 9191 14443 14777 23221 27443 101101 162547 192101 213211 301873 1492477 2113111 2345321 2771743 16417247 19402201 30489173 213424211