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1530368 = 297261
BaseRepresentation
bin101110101101000000000
32212202021022
411311220000
5342432433
652445012
716002500
oct5655000
92782238
101530368
11955874
12619768
13417758
142bba00
15203698
hex175a00

1530368 has 60 divisors (see below), whose sum is σ = 3615282. Its totient is φ = 645120.

The previous prime is 1530349. The next prime is 1530409. The reversal of 1530368 is 8630351.

It can be written as a sum of positive squares in only one way, i.e., 1517824 + 12544 = 1232^2 + 112^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25058 + ... + 25118.

21530368 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 1530368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1807641).

1530368 is an abundant number, since it is smaller than the sum of its proper divisors (2084914).

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

1530368 is an frugal number, since it uses more digits than its factorization.

1530368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1530368 is about 1237.0804339250. The cubic root of 1530368 is about 115.2387729569.

The spelling of 1530368 in words is "one million, five hundred thirty thousand, three hundred sixty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 61 64 98 112 122 128 196 224 244 256 392 427 448 488 512 784 854 896 976 1568 1708 1792 1952 2989 3136 3416 3584 3904 5978 6272 6832 7808 11956 12544 13664 15616 23912 25088 27328 31232 47824 54656 95648 109312 191296 218624 382592 765184 1530368