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30000537 = 3675879
BaseRepresentation
bin111001001110…
…0010110011001
32002110012000000
41302130112121
530140004122
62551003213
7513000060
oct162342631
962405000
1030000537
1115a30936
12a069509
1362a52c8
143dad1d7
1529790ac
hex1c9c599

30000537 has 28 divisors (see below), whose sum is σ = 51414720. Its totient is φ = 17140248.

The previous prime is 30000521. The next prime is 30000571. The reversal of 30000537 is 73500003.

It is not a de Polignac number, because 30000537 - 24 = 30000521 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30000037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 2164 + ... + 8042.

It is an arithmetic number, because the mean of its divisors is an integer number (1836240).

Almost surely, 230000537 is an apocalyptic number.

It is an amenable number.

30000537 is a deficient number, since it is larger than the sum of its proper divisors (21414183).

30000537 is an frugal number, since it uses more digits than its factorization.

30000537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5904 (or 5889 counting only the distinct ones).

The product of its (nonzero) digits is 315, while the sum is 18.

The square root of 30000537 is about 5477.2745960012. The cubic root of 30000537 is about 310.7251045664.

The spelling of 30000537 in words is "thirty million, five hundred thirty-seven", and thus it is an aban number.

Divisors: 1 3 7 9 21 27 63 81 189 243 567 729 1701 5103 5879 17637 41153 52911 123459 158733 370377 476199 1111131 1428597 3333393 4285791 10000179 30000537