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30201345 = 325671141
BaseRepresentation
bin111001100110…
…1011000000001
32002211101110100
41303031120001
530212420340
62555153013
7514464366
oct163153001
962741410
1030201345
1116058799
12a145769
136345825
14402246d
1529b8830
hex1ccd601

30201345 has 12 divisors (see below), whose sum is σ = 52349076. Its totient is φ = 16107360.

The previous prime is 30201343. The next prime is 30201371. The reversal of 30201345 is 54310203.

It can be written as a sum of positive squares in 2 ways, for example, as 6843456 + 23357889 = 2616^2 + 4833^2 .

It is not a de Polignac number, because 30201345 - 21 = 30201343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30201343) 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 11 ways as a sum of consecutive naturals, for example, 335526 + ... + 335615.

It is an arithmetic number, because the mean of its divisors is an integer number (4362423).

Almost surely, 230201345 is an apocalyptic number.

It is an amenable number.

30201345 is a deficient number, since it is larger than the sum of its proper divisors (22147731).

30201345 is a wasteful number, since it uses less digits than its factorization.

30201345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671152 (or 671149 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 30201345 is about 5495.5750381557. The cubic root of 30201345 is about 311.4168409235.

Adding to 30201345 its reverse (54310203), we get a palindrome (84511548).

The spelling of 30201345 in words is "thirty million, two hundred one thousand, three hundred forty-five".

Divisors: 1 3 5 9 15 45 671141 2013423 3355705 6040269 10067115 30201345