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220220120213 = 1657132902909
BaseRepresentation
bin1100110100011000100…
…1000101110010010101
3210001102112000012220122
43031012021011302111
512102002322321323
6245100121241325
721624155064542
oct3150611056225
9701375005818
10220220120213
1185438575855
123681b333245
13179c74a7152
14a931705bc9
155add6c0ec8
hex3346245c95

220220120213 has 4 divisors (see below), whose sum is σ = 220353024780. Its totient is φ = 220087215648.

The previous prime is 220220120209. The next prime is 220220120243. The reversal of 220220120213 is 312021022022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 167786905924 + 52433214289 = 409618^2 + 228983^2 .

It is a cyclic number.

It is not a de Polignac number, because 220220120213 - 22 = 220220120209 is a prime.

It is a super-3 number, since 3×2202201202133 (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220220120191 and 220220120200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220220120203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66449798 + ... + 66453111.

It is an arithmetic number, because the mean of its divisors is an integer number (55088256195).

Almost surely, 2220220120213 is an apocalyptic number.

It is an amenable number.

220220120213 is a deficient number, since it is larger than the sum of its proper divisors (132904567).

220220120213 is a wasteful number, since it uses less digits than its factorization.

220220120213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132904566.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 220220120213 its reverse (312021022022), we get a palindrome (532241142235).

The spelling of 220220120213 in words is "two hundred twenty billion, two hundred twenty million, one hundred twenty thousand, two hundred thirteen".

Divisors: 1 1657 132902909 220220120213