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221113353 = 3431714057
BaseRepresentation
bin11010010110111…
…10110000001001
3120102001201111110
431023132300021
5423101111403
633535120533
75323301226
oct1513366011
9512051443
10221113353
111038a380a
1262073149
1336a6a406
142151a94d
151462a103
hexd2dec09

221113353 has 8 divisors (see below), whose sum is σ = 301674208. Its totient is φ = 143980704.

The previous prime is 221113331. The next prime is 221113363. The reversal of 221113353 is 353311122.

221113353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 221113353 - 218 = 220851209 is a prime.

It is a super-2 number, since 2×2211133532 = 97782229749805218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221113303) 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, 856900 + ... + 857157.

It is an arithmetic number, because the mean of its divisors is an integer number (37709276).

Almost surely, 2221113353 is an apocalyptic number.

It is an amenable number.

221113353 is a deficient number, since it is larger than the sum of its proper divisors (80560855).

221113353 is a wasteful number, since it uses less digits than its factorization.

221113353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714103.

The product of its digits is 540, while the sum is 21.

The square root of 221113353 is about 14869.8807325412. The cubic root of 221113353 is about 604.6977093309.

Adding to 221113353 its reverse (353311122), we get a palindrome (574424475).

The spelling of 221113353 in words is "two hundred twenty-one million, one hundred thirteen thousand, three hundred fifty-three".

Divisors: 1 3 43 129 1714057 5142171 73704451 221113353