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30444568 = 2371124493
BaseRepresentation
bin111010000100…
…0110000011000
32010021202002121
41310020300120
530243211233
63004311024
7516526450
oct164106030
963252077
1030444568
1116204500
12a242474
1363cc44b
144086d60
152a1592d
hex1d08c18

30444568 has 48 divisors (see below), whose sum is σ = 71724240. Its totient is φ = 11858880.

The previous prime is 30444563. The next prime is 30444581. The reversal of 30444568 is 86544403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30444563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4530 + ... + 9022.

It is an arithmetic number, because the mean of its divisors is an integer number (1494255).

Almost surely, 230444568 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 30444568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35862120).

30444568 is an abundant number, since it is smaller than the sum of its proper divisors (41279672).

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

30444568 is a wasteful number, since it uses less digits than its factorization.

30444568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4528 (or 4513 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 30444568 is about 5517.6596488004. The cubic root of 30444568 is about 312.2505931075.

The spelling of 30444568 in words is "thirty million, four hundred forty-four thousand, five hundred sixty-eight".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 77 88 121 154 242 308 484 616 847 968 1694 3388 4493 6776 8986 17972 31451 35944 49423 62902 98846 125804 197692 251608 345961 395384 543653 691922 1087306 1383844 2174612 2767688 3805571 4349224 7611142 15222284 30444568