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212302213 = 2327134061
BaseRepresentation
bin11001010011101…
…11100110000101
3112210111001212221
430221313212011
5413322132323
633022212341
75155352614
oct1451674605
9483431787
10212302213
11a9925882
125b1240b1
1334ca3a16
14202a587b
151398955d
hexca77985

212302213 has 8 divisors (see below), whose sum is σ = 222356736. Its totient is φ = 202316400.

The previous prime is 212302201. The next prime is 212302241. The reversal of 212302213 is 312203212.

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

It is a cyclic number.

It is not a de Polignac number, because 212302213 - 29 = 212301701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212302513) 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, 10798 + ... + 23263.

It is an arithmetic number, because the mean of its divisors is an integer number (27794592).

Almost surely, 2212302213 is an apocalyptic number.

212302213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

212302213 is a deficient number, since it is larger than the sum of its proper divisors (10054523).

212302213 is a wasteful number, since it uses less digits than its factorization.

212302213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34355.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 212302213 is about 14570.5941196644. The cubic root of 212302213 is about 596.5563969557.

Adding to 212302213 its reverse (312203212), we get a palindrome (524505425).

Subtracting 212302213 from its reverse (312203212), we obtain a palindrome (99900999).

The spelling of 212302213 in words is "two hundred twelve million, three hundred two thousand, two hundred thirteen".

Divisors: 1 23 271 6233 34061 783403 9230531 212302213