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30565068 = 22323591877
BaseRepresentation
bin111010010011…
…0001011001100
32010111212101120
41310212023030
530311040233
63011040540
7520540662
oct164461314
963455346
1030565068
1116286a96
12a2a0150
136442251
1440b8c32
152a3b4b3
hex1d262cc

30565068 has 48 divisors (see below), whose sum is σ = 75720960. Its totient is φ = 9575104.

The previous prime is 30565063. The next prime is 30565069. The reversal of 30565068 is 86056503.

It is not an unprimeable number, because it can be changed into a prime (30565061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15346 + ... + 17222.

It is an arithmetic number, because the mean of its divisors is an integer number (1577520).

Almost surely, 230565068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30565068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37860480).

30565068 is an abundant number, since it is smaller than the sum of its proper divisors (45155892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30565068 is a wasteful number, since it uses less digits than its factorization.

30565068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1966 (or 1964 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 30565068 is about 5528.5683499438. The cubic root of 30565068 is about 312.6620147627.

The spelling of 30565068 in words is "thirty million, five hundred sixty-five thousand, sixty-eight".

Divisors: 1 2 3 4 6 12 23 46 59 69 92 118 138 177 236 276 354 708 1357 1877 2714 3754 4071 5428 5631 7508 8142 11262 16284 22524 43171 86342 110743 129513 172684 221486 259026 332229 442972 518052 664458 1328916 2547089 5094178 7641267 10188356 15282534 30565068