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30020535 = 325667123
BaseRepresentation
bin111001010000…
…1001110110111
32002111012102200
41302201032313
530141124120
62551235543
7513112266
oct162411667
962435380
1030020535
1115a44966
12a078bb3
1362b143c
143db65dd
15297ee90
hex1ca13b7

30020535 has 12 divisors (see below), whose sum is σ = 52035672. Its totient is φ = 16010928.

The previous prime is 30020527. The next prime is 30020561. The reversal of 30020535 is 53502003.

It is not a de Polignac number, because 30020535 - 23 = 30020527 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 333517 + ... + 333606.

It is an arithmetic number, because the mean of its divisors is an integer number (4336306).

Almost surely, 230020535 is an apocalyptic number.

30020535 is a deficient number, since it is larger than the sum of its proper divisors (22015137).

30020535 is a wasteful number, since it uses less digits than its factorization.

30020535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667134 (or 667131 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 18.

The square root of 30020535 is about 5479.0998348269. The cubic root of 30020535 is about 310.7941311136.

Adding to 30020535 its reverse (53502003), we get a palindrome (83522538).

The spelling of 30020535 in words is "thirty million, twenty thousand, five hundred thirty-five".

Divisors: 1 3 5 9 15 45 667123 2001369 3335615 6004107 10006845 30020535