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220223123213 = 2412159942307
BaseRepresentation
bin1100110100011001010…
…0100010111100001101
3210001102201122210020212
43031012110202330031
512102004104420323
6245100305452205
721624222442622
oct3150624427415
9701381583225
10220223123213
118543a236a75
1236820341065
13179c7cb8c82
14a931c88349
155addab5b78
hex3346522f0d

220223123213 has 8 divisors (see below), whose sum is σ = 221152377600. Its totient is φ = 219293997120.

The previous prime is 220223123201. The next prime is 220223123233. The reversal of 220223123213 is 312321322022.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-220223123213 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 (220223123233) 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, 5184206 + ... + 5226512.

It is an arithmetic number, because the mean of its divisors is an integer number (27644047200).

Almost surely, 2220223123213 is an apocalyptic number.

It is an amenable number.

220223123213 is a deficient number, since it is larger than the sum of its proper divisors (929254387).

220223123213 is a wasteful number, since it uses less digits than its factorization.

220223123213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64147.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 220223123213 its reverse (312321322022), we get a palindrome (532544445235).

The spelling of 220223123213 in words is "two hundred twenty billion, two hundred twenty-three million, one hundred twenty-three thousand, two hundred thirteen".

Divisors: 1 241 21599 42307 5205359 10195987 913788893 220223123213