Search a number
-
+
2003221201 = 2278879949
BaseRepresentation
bin111011101100110…
…1011101011010001
312011121102011212211
41313121223223101
513100311034301
6530435552121
7100433046022
oct16731535321
95147364784
102003221201
11938847813
1247aa5b641
1325c0345b7
14150096c49
15bacec051
hex7766bad1

2003221201 has 8 divisors (see below), whose sum is σ = 2014516800. Its totient is φ = 1991947728.

The previous prime is 2003221189. The next prime is 2003221229. The reversal of 2003221201 is 1021223002.

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-2003221201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2003221291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196375 + ... + 206323.

It is an arithmetic number, because the mean of its divisors is an integer number (251814600).

Almost surely, 22003221201 is an apocalyptic number.

It is an amenable number.

2003221201 is a deficient number, since it is larger than the sum of its proper divisors (11295599).

2003221201 is an equidigital number, since it uses as much as digits as its factorization.

2003221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11063.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2003221201 is about 44757.3591825970. The cubic root of 2003221201 is about 1260.5970969018.

Adding to 2003221201 its reverse (1021223002), we get a palindrome (3024444203).

The spelling of 2003221201 in words is "two billion, three million, two hundred twenty-one thousand, two hundred one".

Divisors: 1 227 887 9949 201349 2258423 8824763 2003221201