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2221312301 = 13643265739
BaseRepresentation
bin1000010001100110…
…1000100100101101
312201210210100121222
42010121220210231
514022123443201
61004230233125
7106021562105
oct20431504455
95653710558
102221312301
11a3a96689a
1251bab57a5
132952841a0
14171028205
15d002b91b
hex8466892d

2221312301 has 8 divisors (see below), whose sum is σ = 2395911840. Its totient is φ = 2047245552.

The previous prime is 2221312271. The next prime is 2221312349. The reversal of 2221312301 is 1032131222.

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-2221312301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2221312301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221312381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124511 + ... + 141228.

It is an arithmetic number, because the mean of its divisors is an integer number (299488980).

Almost surely, 22221312301 is an apocalyptic number.

It is an amenable number.

2221312301 is a deficient number, since it is larger than the sum of its proper divisors (174599539).

2221312301 is a wasteful number, since it uses less digits than its factorization.

2221312301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266395.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2221312301 is about 47130.7999189490. The cubic root of 2221312301 is about 1304.7777450166. Note that the first 4 decimals are identical.

Adding to 2221312301 its reverse (1032131222), we get a palindrome (3253443523).

The spelling of 2221312301 in words is "two billion, two hundred twenty-one million, three hundred twelve thousand, three hundred one".

Divisors: 1 13 643 8359 265739 3454607 170870177 2221312301