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30220030 = 2529104207
BaseRepresentation
bin111001101000…
…1111011111110
32002212100002101
41303101323332
530214020110
62555415314
7514603021
oct163217376
962770071
1030220030
1116070835
12a15453a
136351199
1440291b8
1529be13a
hex1cd1efe

30220030 has 16 divisors (see below), whose sum is σ = 56272320. Its totient is φ = 11671072.

The previous prime is 30220007. The next prime is 30220049. The reversal of 30220030 is 3002203.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 30219989 and 30220016.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 51814 + ... + 52393.

It is an arithmetic number, because the mean of its divisors is an integer number (3517020).

Almost surely, 230220030 is an apocalyptic number.

30220030 is a deficient number, since it is larger than the sum of its proper divisors (26052290).

30220030 is a wasteful number, since it uses less digits than its factorization.

30220030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104243.

The product of its (nonzero) digits is 36, while the sum is 10.

The square root of 30220030 is about 5497.2747793793. The cubic root of 30220030 is about 311.4810502502.

Adding to 30220030 its reverse (3002203), we get a palindrome (33222233).

The spelling of 30220030 in words is "thirty million, two hundred twenty thousand, thirty".

Divisors: 1 2 5 10 29 58 145 290 104207 208414 521035 1042070 3022003 6044006 15110015 30220030