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30211330 = 2519295483
BaseRepresentation
bin111001100111…
…1110100000010
32002211220011011
41303033310002
530213230310
62555311134
7514535452
oct163176402
962756134
1030211330
1116065246
12a14b4aa
13634a236
144025d62
1529bb78a
hex1ccfd02

30211330 has 32 divisors (see below), whose sum is σ = 59227200. Its totient is φ = 11051712.

The previous prime is 30211309. The next prime is 30211331. The reversal of 30211330 is 3311203.

It is a self number, because there is not a number n which added to its sum of digits gives 30211330.

It is not an unprimeable number, because it can be changed into a prime (30211331) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2769 + ... + 8251.

It is an arithmetic number, because the mean of its divisors is an integer number (1850850).

Almost surely, 230211330 is an apocalyptic number.

30211330 is a deficient number, since it is larger than the sum of its proper divisors (29015870).

30211330 is a wasteful number, since it uses less digits than its factorization.

30211330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5538.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 30211330 is about 5496.4834212431. The cubic root of 30211330 is about 311.4511567742.

Adding to 30211330 its reverse (3311203), we get a palindrome (33522533).

The spelling of 30211330 in words is "thirty million, two hundred eleven thousand, three hundred thirty".

Divisors: 1 2 5 10 19 29 38 58 95 145 190 290 551 1102 2755 5483 5510 10966 27415 54830 104177 159007 208354 318014 520885 795035 1041770 1590070 3021133 6042266 15105665 30211330