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1220441324 = 221559195709
BaseRepresentation
bin100100010111110…
…0111010011101100
310011001110211202112
41020233213103230
54444413110244
6321034143152
742146402654
oct11057472354
93131424675
101220441324
115769a86a3
122a0881ab8
13165b0073b
14b8131364
157222739e
hex48be74ec

1220441324 has 12 divisors (see below), whose sum is σ = 2137153200. Its totient is φ = 609826128.

The previous prime is 1220441323. The next prime is 1220441357. The reversal of 1220441324 is 4231440221.

It is a self number, because there is not a number n which added to its sum of digits gives 1220441324.

It is not an unprimeable number, because it can be changed into a prime (1220441323) 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, 91619 + ... + 104090.

It is an arithmetic number, because the mean of its divisors is an integer number (178096100).

Almost surely, 21220441324 is an apocalyptic number.

It is an amenable number.

1220441324 is a deficient number, since it is larger than the sum of its proper divisors (916711876).

1220441324 is a wasteful number, since it uses less digits than its factorization.

1220441324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197272 (or 197270 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1220441324 is about 34934.8153566038. The cubic root of 1220441324 is about 1068.6585582812.

Adding to 1220441324 its reverse (4231440221), we get a palindrome (5451881545).

The spelling of 1220441324 in words is "one billion, two hundred twenty million, four hundred forty-one thousand, three hundred twenty-four".

Divisors: 1 2 4 1559 3118 6236 195709 391418 782836 305110331 610220662 1220441324