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4220271 = 321147907
BaseRepresentation
bin10000000110010101101111
321221102010100
4100012111233
52040022041
6230242143
750604666
oct20062557
97842110
104220271
112422830
1214b6353
13b49c03
147bbddd
155856b6
hex40656f

4220271 has 24 divisors (see below), whose sum is σ = 6799104. Its totient is φ = 2500560.

The previous prime is 4220269. The next prime is 4220287. The reversal of 4220271 is 1720224.

It is not a de Polignac number, because 4220271 - 21 = 4220269 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4200 + ... + 5106.

It is an arithmetic number, because the mean of its divisors is an integer number (283296).

Almost surely, 24220271 is an apocalyptic number.

4220271 is a deficient number, since it is larger than the sum of its proper divisors (2578833).

4220271 is a wasteful number, since it uses less digits than its factorization.

4220271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971 (or 968 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 4220271 is about 2054.3298177265. The cubic root of 4220271 is about 161.6020180572.

Adding to 4220271 its reverse (1720224), we get a palindrome (5940495).

The spelling of 4220271 in words is "four million, two hundred twenty thousand, two hundred seventy-one".

Divisors: 1 3 9 11 33 47 99 141 423 517 907 1551 2721 4653 8163 9977 29931 42629 89793 127887 383661 468919 1406757 4220271