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213212033211 = 34313009127051
BaseRepresentation
bin1100011010010001101…
…1010111000010111011
3202101100010001111211210
43012210123113002323
511443124240030321
6241540453454203
721255410244162
oct3064433270273
9671303044753
10213212033211
11824716a8311
12353a4341363
131714b5cc2c8
14a468a823d9
15582d30ab76
hex31a46d70bb

213212033211 has 16 divisors (see below), whose sum is σ = 290918587520. Its totient is φ = 138823977600.

The previous prime is 213212033201. The next prime is 213212033257. The reversal of 213212033211 is 112330212312.

It is not a de Polignac number, because 213212033211 - 26 = 213212033147 is a prime.

It is a super-2 number, since 2×2132120332112 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213212033201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1614636 + ... + 1741686.

It is an arithmetic number, because the mean of its divisors is an integer number (18182411720).

Almost surely, 2213212033211 is an apocalyptic number.

213212033211 is a deficient number, since it is larger than the sum of its proper divisors (77706554309).

213212033211 is a wasteful number, since it uses less digits than its factorization.

213212033211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140106.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 213212033211 its reverse (112330212312), we get a palindrome (325542245523).

The spelling of 213212033211 in words is "two hundred thirteen billion, two hundred twelve million, thirty-three thousand, two hundred eleven".

Divisors: 1 3 43 129 13009 39027 127051 381153 559387 1678161 5463193 16389579 1652806459 4958419377 71070677737 213212033211