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30052724 = 2213577937
BaseRepresentation
bin111001010100…
…1000101110100
32002112211120212
41302221011310
530143141344
62552044552
7513305162
oct162510564
962484525
1030052724
1115a67069
12a093758
1362c2ca0
143dc4232
15298979e
hex1ca9174

30052724 has 12 divisors (see below), whose sum is σ = 56637924. Its totient is φ = 13870464.

The previous prime is 30052721. The next prime is 30052751. The reversal of 30052724 is 42725003.

It can be written as a sum of positive squares in 2 ways, for example, as 4368100 + 25684624 = 2090^2 + 5068^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30052724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30052721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288917 + ... + 289020.

It is an arithmetic number, because the mean of its divisors is an integer number (4719827).

Almost surely, 230052724 is an apocalyptic number.

It is an amenable number.

30052724 is a deficient number, since it is larger than the sum of its proper divisors (26585200).

30052724 is a wasteful number, since it uses less digits than its factorization.

30052724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577954 (or 577952 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 30052724 is about 5482.0364829140. The cubic root of 30052724 is about 310.9051726482.

Adding to 30052724 its reverse (42725003), we get a palindrome (72777727).

The spelling of 30052724 in words is "thirty million, fifty-two thousand, seven hundred twenty-four".

Divisors: 1 2 4 13 26 52 577937 1155874 2311748 7513181 15026362 30052724