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30027829 = 1311320441
BaseRepresentation
bin111001010001…
…1000000110101
32002111120102211
41302203000311
530141342304
62551333421
7513142456
oct162430065
962446384
1030027829
1115a4a397
12a081271
1362b4860
143db912d
152982204
hex1ca3035

30027829 has 8 divisors (see below), whose sum is σ = 32625432. Its totient is φ = 27471360.

The previous prime is 30027827. The next prime is 30027853. The reversal of 30027829 is 92872003.

It can be written as a sum of positive squares in 4 ways, for example, as 106929 + 29920900 = 327^2 + 5470^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30027829 - 21 = 30027827 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30027829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30027827) 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 7 ways as a sum of consecutive naturals, for example, 8752 + ... + 11689.

It is an arithmetic number, because the mean of its divisors is an integer number (4078179).

Almost surely, 230027829 is an apocalyptic number.

It is an amenable number.

30027829 is a deficient number, since it is larger than the sum of its proper divisors (2597603).

30027829 is a wasteful number, since it uses less digits than its factorization.

30027829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20567.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 30027829 is about 5479.7654146870. The cubic root of 30027829 is about 310.8192999835.

The spelling of 30027829 in words is "thirty million, twenty-seven thousand, eight hundred twenty-nine".

Divisors: 1 13 113 1469 20441 265733 2309833 30027829