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30007225538 = 2171213727589
BaseRepresentation
bin11011111100100100…
…011110110011000010
32212110020212222221122
4123330210132303002
5442423322204123
621441330552242
72111415131363
oct337444366302
985406788848
1030007225538
11117a9329754
125995438682
132aa2a24b74
1416493a9b6a
15ba95a4bc8
hex6fc91ecc2

30007225538 has 16 divisors (see below), whose sum is σ = 47697890040. Its totient is φ = 14109386496.

The previous prime is 30007225531. The next prime is 30007225553. The reversal of 30007225538 is 83552270003.

It can be written as a sum of positive squares in 4 ways, for example, as 20772592129 + 9234633409 = 144127^2 + 96097^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30007225498 and 30007225507.

It is not an unprimeable number, because it can be changed into a prime (30007225531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322553 + ... + 405036.

Almost surely, 230007225538 is an apocalyptic number.

30007225538 is a deficient number, since it is larger than the sum of its proper divisors (17690664502).

30007225538 is a wasteful number, since it uses less digits than its factorization.

30007225538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728821.

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 30007225538 in words is "thirty billion, seven million, two hundred twenty-five thousand, five hundred thirty-eight".

Divisors: 1 2 17 34 1213 2426 20621 41242 727589 1455178 12369013 24738026 882565457 1765130914 15003612769 30007225538