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2212323030 = 2355910421
BaseRepresentation
bin1000001111011101…
…0101111011010110
312201011212122200000
42003313111323112
514012323314110
61003305432130
7105552302241
oct20367257326
95634778600
102212323030
11a35887045
12518a9b646
132934576a8
1416db68258
15ce3531c0
hex83dd5ed6

2212323030 has 48 divisors (see below), whose sum is σ = 5965084944. Its totient is φ = 589952160.

The previous prime is 2212323019. The next prime is 2212323037. The reversal of 2212323030 is 303232122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2212322994 and 2212323012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212323037) 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 23 ways as a sum of consecutive naturals, for example, 452781 + ... + 457640.

It is an arithmetic number, because the mean of its divisors is an integer number (124272603).

Almost surely, 22212323030 is an apocalyptic number.

2212323030 is an abundant number, since it is smaller than the sum of its proper divisors (3752761914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2212323030 is an equidigital number, since it uses as much as digits as its factorization.

2212323030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910443 (or 910431 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 2212323030 is about 47035.3380980726. The cubic root of 2212323030 is about 1303.0152946308.

Adding to 2212323030 its reverse (303232122), we get a palindrome (2515555152).

The spelling of 2212323030 in words is "two billion, two hundred twelve million, three hundred twenty-three thousand, thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 243 270 405 486 810 1215 2430 910421 1820842 2731263 4552105 5462526 8193789 9104210 13656315 16387578 24581367 27312630 40968945 49162734 73744101 81937890 122906835 147488202 221232303 245813670 368720505 442464606 737441010 1106161515 2212323030