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729828490 = 2585432
BaseRepresentation
bin101011100000000…
…100110010001010
31212212022010110211
4223200010302022
52443314002430
6200230431334
724041303566
oct5340046212
91785263424
10729828490
11344a72a46
1218450254a
13b82842a1
146cd006a6
154411572a
hex2b804c8a

729828490 has 12 divisors (see below), whose sum is σ = 1313845074. Its totient is φ = 291897224.

The previous prime is 729828469. The next prime is 729828499. The reversal of 729828490 is 94828927.

It can be written as a sum of positive squares in only one way, i.e., 656845641 + 72982849 = 25629^2 + 8543^2 .

It is not an unprimeable number, because it can be changed into a prime (729828499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 81159 + ... + 89701.

Almost surely, 2729828490 is an apocalyptic number.

729828490 is a deficient number, since it is larger than the sum of its proper divisors (584016584).

729828490 is an frugal number, since it uses more digits than its factorization.

729828490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17093 (or 8550 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 729828490 is about 27015.3380508185. The cubic root of 729828490 is about 900.3408133109.

The spelling of 729828490 in words is "seven hundred twenty-nine million, eight hundred twenty-eight thousand, four hundred ninety".

Divisors: 1 2 5 10 8543 17086 42715 85430 72982849 145965698 364914245 729828490