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30030222 = 2319263423
BaseRepresentation
bin111001010001…
…1100110001110
32002111200201110
41302203212032
530141431342
62551352450
7513152445
oct162434616
962450643
1030030222
1115a51172
12a082726
1362b5981
143db9d5c
152982c9c
hex1ca398e

30030222 has 16 divisors (see below), whose sum is σ = 63221760. Its totient is φ = 9483192.

The previous prime is 30030181. The next prime is 30030269. The reversal of 30030222 is 22203003.

It is a junction number, because it is equal to n+sod(n) for n = 30030198 and 30030207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131598 + ... + 131825.

It is an arithmetic number, because the mean of its divisors is an integer number (3951360).

Almost surely, 230030222 is an apocalyptic number.

30030222 is an abundant number, since it is smaller than the sum of its proper divisors (33191538).

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

30030222 is a wasteful number, since it uses less digits than its factorization.

30030222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263447.

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 30030222 is about 5479.9837591000. The cubic root of 30030222 is about 310.8275564449.

Adding to 30030222 its reverse (22203003), we get a palindrome (52233225).

The spelling of 30030222 in words is "thirty million, thirty thousand, two hundred twenty-two".

Divisors: 1 2 3 6 19 38 57 114 263423 526846 790269 1580538 5005037 10010074 15015111 30030222