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244120223 = 713438313
BaseRepresentation
bin11101000110011…
…11101010011111
3122000100120222202
432203033222133
5444443321343
640120202115
76022662524
oct1643175237
9560316882
10244120223
11115888156
126990933b
133b764349
14245c914b
1516671db8
hexe8cfa9f

244120223 has 4 divisors (see below), whose sum is σ = 247558608. Its totient is φ = 240681840.

The previous prime is 244120213. The next prime is 244120237. The reversal of 244120223 is 322021442.

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

It is a cyclic number.

It is not a de Polignac number, because 244120223 - 24 = 244120207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 244120195 and 244120204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244120213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1719086 + ... + 1719227.

It is an arithmetic number, because the mean of its divisors is an integer number (61889652).

Almost surely, 2244120223 is an apocalyptic number.

244120223 is a deficient number, since it is larger than the sum of its proper divisors (3438385).

244120223 is an equidigital number, since it uses as much as digits as its factorization.

244120223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3438384.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 244120223 is about 15624.3471223600. The cubic root of 244120223 is about 624.9825898084.

Adding to 244120223 its reverse (322021442), we get a palindrome (566141665).

The spelling of 244120223 in words is "two hundred forty-four million, one hundred twenty thousand, two hundred twenty-three".

Divisors: 1 71 3438313 244120223