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30345133 = 7132113227
BaseRepresentation
bin111001111000…
…0011110101101
32010002200200211
41303300132231
530232021013
63002222421
7515633530
oct163603655
963080624
1030345133
1116146825
12a1b4a11
136396100
14405ca17
1529e623d
hex1cf07ad

30345133 has 24 divisors (see below), whose sum is σ = 38052288. Its totient is φ = 23692032.

The previous prime is 30345103. The next prime is 30345149. The reversal of 30345133 is 33154303.

It is not a de Polignac number, because 30345133 - 25 = 30345101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30345103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133566 + ... + 133792.

It is an arithmetic number, because the mean of its divisors is an integer number (1585512).

Almost surely, 230345133 is an apocalyptic number.

It is an amenable number.

30345133 is a deficient number, since it is larger than the sum of its proper divisors (7707155).

30345133 is a wasteful number, since it uses less digits than its factorization.

30345133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373 (or 360 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 22.

The square root of 30345133 is about 5508.6416656014. The cubic root of 30345133 is about 311.9102751253.

Adding to 30345133 its reverse (33154303), we get a palindrome (63499436).

The spelling of 30345133 in words is "thirty million, three hundred forty-five thousand, one hundred thirty-three".

Divisors: 1 7 13 91 113 169 227 791 1183 1469 1589 2951 10283 19097 20657 25651 38363 133679 179557 268541 333463 2334241 4335019 30345133