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30300340 = 2257216431
BaseRepresentation
bin111001110010…
…1100010110100
32010000102020211
41303211202310
530224102330
63001235204
7515356120
oct163454264
963012224
1030300340
1116116104
12a192b04
13637b8c5
14404a580
1529d7d2a
hex1ce58b4

30300340 has 24 divisors (see below), whose sum is σ = 72721152. Its totient is φ = 10388640.

The previous prime is 30300311. The next prime is 30300359. The reversal of 30300340 is 4300303.

It is a super-2 number, since 2×303003402 = 1836221208231200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30300340.

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, 108076 + ... + 108355.

It is an arithmetic number, because the mean of its divisors is an integer number (3030048).

Almost surely, 230300340 is an apocalyptic number.

It is an amenable number.

30300340 is an abundant number, since it is smaller than the sum of its proper divisors (42420812).

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

30300340 is a wasteful number, since it uses less digits than its factorization.

30300340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216447 (or 216445 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 13.

The square root of 30300340 is about 5504.5744613003. The cubic root of 30300340 is about 311.7567274150.

Adding to 30300340 its reverse (4300303), we get a palindrome (34600643).

The spelling of 30300340 in words is "thirty million, three hundred thousand, three hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 216431 432862 865724 1082155 1515017 2164310 3030034 4328620 6060068 7575085 15150170 30300340