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481130729 = 6128128069
BaseRepresentation
bin11100101011010…
…111100011101001
31020112022222021122
4130223113203221
51441132140404
6115424145025
714631354332
oct3453274351
91215288248
10481130729
11227649702
12115168175
13788a9551
1447c83289
152c38c3be
hex1cad78e9

481130729 has 8 divisors (see below), whose sum is σ = 490775880. Its totient is φ = 471542400.

The previous prime is 481130693. The next prime is 481130731. The reversal of 481130729 is 927031184.

It can be written as a sum of positive squares in 4 ways, for example, as 425104 + 480705625 = 652^2 + 21925^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-481130729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (481130759) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3107 + ... + 31175.

It is an arithmetic number, because the mean of its divisors is an integer number (61346985).

Almost surely, 2481130729 is an apocalyptic number.

It is an amenable number.

481130729 is a deficient number, since it is larger than the sum of its proper divisors (9645151).

481130729 is a wasteful number, since it uses less digits than its factorization.

481130729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28411.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 481130729 is about 21934.6923616448. The cubic root of 481130729 is about 783.5878592032.

The spelling of 481130729 in words is "four hundred eighty-one million, one hundred thirty thousand, seven hundred twenty-nine".

Divisors: 1 61 281 17141 28069 1712209 7887389 481130729