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30540506 = 247569571
BaseRepresentation
bin111010010000…
…0001011011010
32010110121200212
41310200023122
530304244011
63010331122
7520406243
oct164401332
963417625
1030540506
111626a597
12a289aa2
136434009
1440adcca
152a3408b
hex1d202da

30540506 has 16 divisors (see below), whose sum is σ = 46949760. Its totient is φ = 14892960.

The previous prime is 30540493. The next prime is 30540529. The reversal of 30540506 is 60504503.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 53201 + ... + 53771.

It is an arithmetic number, because the mean of its divisors is an integer number (2934360).

Almost surely, 230540506 is an apocalyptic number.

30540506 is a deficient number, since it is larger than the sum of its proper divisors (16409254).

30540506 is a wasteful number, since it uses less digits than its factorization.

30540506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 30540506 is about 5526.3465327466. The cubic root of 30540506 is about 312.5782408891.

The spelling of 30540506 in words is "thirty million, five hundred forty thousand, five hundred six".

Divisors: 1 2 47 94 569 571 1138 1142 26743 26837 53486 53674 324899 649798 15270253 30540506