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244021201 = 613398077
BaseRepresentation
bin11101000101101…
…11011111010001
3122000011120011021
432202313133101
5444432134301
640114115441
76022101034
oct1642673721
9560146137
10244021201
1111581a816
126987bb81
133b72b258
14245a101b
15166528a1
hexe8b77d1

244021201 has 4 divisors (see below), whose sum is σ = 244419892. Its totient is φ = 243622512.

The previous prime is 244021189. The next prime is 244021207. The reversal of 244021201 is 102120442.

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 39388176 + 204633025 = 6276^2 + 14305^2 .

It is a cyclic number.

It is not a de Polignac number, because 244021201 - 213 = 244013009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244021207) 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, 198426 + ... + 199651.

It is an arithmetic number, because the mean of its divisors is an integer number (61104973).

Almost surely, 2244021201 is an apocalyptic number.

It is an amenable number.

244021201 is a deficient number, since it is larger than the sum of its proper divisors (398691).

244021201 is an equidigital number, since it uses as much as digits as its factorization.

244021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398690.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 244021201 is about 15621.1779645454. The cubic root of 244021201 is about 624.8980748989.

Adding to 244021201 its reverse (102120442), we get a palindrome (346141643).

The spelling of 244021201 in words is "two hundred forty-four million, twenty-one thousand, two hundred one".

Divisors: 1 613 398077 244021201