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30041073 = 329293593
BaseRepresentation
bin111001010011…
…0001111110001
32002112020121100
41302212033301
530142303243
62551515013
7513226206
oct162461761
962466540
1030041073
1115a59337
12a088a69
1362ba8aa
143dbdcad
1529860d3
hex1ca63f1

30041073 has 12 divisors (see below), whose sum is σ = 43451460. Its totient is φ = 20000256.

The previous prime is 30041041. The next prime is 30041087. The reversal of 30041073 is 37014003.

It can be written as a sum of positive squares in 2 ways, for example, as 3908529 + 26132544 = 1977^2 + 5112^2 .

It is not a de Polignac number, because 30041073 - 25 = 30041041 is a prime.

It is a super-3 number, since 3×300410733 (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (30041173) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6565 + ... + 10157.

It is an arithmetic number, because the mean of its divisors is an integer number (3620955).

Almost surely, 230041073 is an apocalyptic number.

It is an amenable number.

30041073 is a deficient number, since it is larger than the sum of its proper divisors (13410387).

30041073 is a wasteful number, since it uses less digits than its factorization.

30041073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4528 (or 4525 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 30041073 is about 5480.9737273590. The cubic root of 30041073 is about 310.8649896642.

Adding to 30041073 its reverse (37014003), we get a palindrome (67055076).

The spelling of 30041073 in words is "thirty million, forty-one thousand, seventy-three".

Divisors: 1 3 9 929 2787 3593 8361 10779 32337 3337897 10013691 30041073