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30040713 = 34370873
BaseRepresentation
bin111001010011…
…0001010001001
32002112020010000
41302212022021
530142300323
62551513213
7513225153
oct162461211
962466100
1030040713
1115a5903a
12a088809
1362ba691
143dbdad3
152985e43
hex1ca6289

30040713 has 10 divisors (see below), whose sum is σ = 44875754. Its totient is φ = 20027088.

The previous prime is 30040697. The next prime is 30040721. The reversal of 30040713 is 31704003.

It can be written as a sum of positive squares in only one way, i.e., 22155849 + 7884864 = 4707^2 + 2808^2 .

It is not a de Polignac number, because 30040713 - 24 = 30040697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30040763) 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 9 ways as a sum of consecutive naturals, for example, 185356 + ... + 185517.

Almost surely, 230040713 is an apocalyptic number.

It is an amenable number.

30040713 is a deficient number, since it is larger than the sum of its proper divisors (14835041).

30040713 is an equidigital number, since it uses as much as digits as its factorization.

30040713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370885 (or 370876 counting only the distinct ones).

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

The square root of 30040713 is about 5480.9408863807. The cubic root of 30040713 is about 310.8637478994.

Adding to 30040713 its reverse (31704003), we get a palindrome (61744716).

The spelling of 30040713 in words is "thirty million, forty thousand, seven hundred thirteen".

Divisors: 1 3 9 27 81 370873 1112619 3337857 10013571 30040713