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490085434 = 21873130829
BaseRepresentation
bin11101001101100…
…001110000111010
31021011011220211101
4131031201300322
52000430213214
6120344122014
715100441336
oct3515416072
91234156741
10490085434
11231705493
1211816630a
137a6c33a7
14491347c6
152d05a774
hex1d361c3a

490085434 has 8 divisors (see below), whose sum is σ = 735526260. Its totient is φ = 244910016.

The previous prime is 490085389. The next prime is 490085437. The reversal of 490085434 is 434580094.

It can be written as a sum of positive squares in 2 ways, for example, as 368755209 + 121330225 = 19203^2 + 11015^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 490085393 and 490085402.

It is not an unprimeable number, because it can be changed into a prime (490085437) 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, 61669 + ... + 69160.

Almost surely, 2490085434 is an apocalyptic number.

490085434 is a deficient number, since it is larger than the sum of its proper divisors (245440826).

490085434 is a wasteful number, since it uses less digits than its factorization.

490085434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132704.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 490085434 is about 22137.8732944246. The cubic root of 490085434 is about 788.4193326295.

The spelling of 490085434 in words is "four hundred ninety million, eighty-five thousand, four hundred thirty-four".

Divisors: 1 2 1873 3746 130829 261658 245042717 490085434