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728946130 = 251123212527
BaseRepresentation
bin101011011100101…
…101010111010010
31212210122022002211
4223130231113102
52443102234010
6200155502334
724030640243
oct5334552722
91783568084
10728946130
11344520020
121841579aa
13b8035793
146cb50cca
1543ede08a
hex2b72d5d2

728946130 has 48 divisors (see below), whose sum is σ = 1496444544. Its totient is φ = 253526240.

The previous prime is 728946103. The next prime is 728946143. The reversal of 728946130 is 31649827.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51927 + ... + 64453.

It is an arithmetic number, because the mean of its divisors is an integer number (31175928).

Almost surely, 2728946130 is an apocalyptic number.

728946130 is an abundant number, since it is smaller than the sum of its proper divisors (767498414).

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

728946130 is a wasteful number, since it uses less digits than its factorization.

728946130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12591 (or 12568 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 728946130 is about 26999.0023889773. The cubic root of 728946130 is about 899.9778307296.

The spelling of 728946130 in words is "seven hundred twenty-eight million, nine hundred forty-six thousand, one hundred thirty".

Divisors: 1 2 5 10 11 22 23 46 55 110 115 230 253 506 529 1058 1265 2530 2645 5290 5819 11638 12527 25054 29095 58190 62635 125270 137797 275594 288121 576242 688985 1377970 1440605 2881210 3169331 6338662 6626783 13253566 15846655 31693310 33133915 66267830 72894613 145789226 364473065 728946130