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30221068 = 2247915773
BaseRepresentation
bin111001101001…
…0001100001100
32002212101111211
41303102030030
530214033233
62555424204
7514606033
oct163221414
962771454
1030221068
1116071599
12a155064
1363517b7
14402971a
1529be5cd
hex1cd230c

30221068 has 12 divisors (see below), whose sum is σ = 53000640. Its totient is φ = 15078032.

The previous prime is 30221041. The next prime is 30221069. The reversal of 30221068 is 86012203.

It is not an unprimeable number, because it can be changed into a prime (30221069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5971 + ... + 9802.

It is an arithmetic number, because the mean of its divisors is an integer number (4416720).

Almost surely, 230221068 is an apocalyptic number.

It is an amenable number.

30221068 is a deficient number, since it is larger than the sum of its proper divisors (22779572).

30221068 is a wasteful number, since it uses less digits than its factorization.

30221068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16256 (or 16254 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 30221068 is about 5497.3691889849. The cubic root of 30221068 is about 311.4846164681.

The spelling of 30221068 in words is "thirty million, two hundred twenty-one thousand, sixty-eight".

Divisors: 1 2 4 479 958 1916 15773 31546 63092 7555267 15110534 30221068