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1020331222 = 2823161981
BaseRepresentation
bin111100110100010…
…000010011010110
32122002221012022021
4330310100103112
54042201044342
6245125123354
734166446411
oct7464202326
92562835267
101020331222
11483a4aa49
1224585955a
131335082b1
1499720b78
155e89a567
hex3cd104d6

1020331222 has 8 divisors (see below), whose sum is σ = 1530707472. Its totient is φ = 510095400.

The previous prime is 1020331199. The next prime is 1020331229. The reversal of 1020331222 is 2221330201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1020331196 and 1020331205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020331229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14529 + ... + 47452.

It is an arithmetic number, because the mean of its divisors is an integer number (191338434).

Almost surely, 21020331222 is an apocalyptic number.

1020331222 is a deficient number, since it is larger than the sum of its proper divisors (510376250).

1020331222 is an equidigital number, since it uses as much as digits as its factorization.

1020331222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70214.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1020331222 is about 31942.6239059975. The cubic root of 1020331222 is about 1006.7316571104.

Adding to 1020331222 its reverse (2221330201), we get a palindrome (3241661423).

The spelling of 1020331222 in words is "one billion, twenty million, three hundred thirty-one thousand, two hundred twenty-two".

Divisors: 1 2 8231 16462 61981 123962 510165611 1020331222