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471243817 = 11218121517
BaseRepresentation
bin11100000101101…
…001110000101001
31012211201122222201
4130011221300221
51431114300232
6114432220201
714451335452
oct3405516051
91184648881
10471243817
11222006500
1211199a661
13768272c5
144682c129
152b587be7
hex1c169c29

471243817 has 12 divisors (see below), whose sum is σ = 520864708. Its totient is φ = 426016800.

The previous prime is 471243743. The next prime is 471243841. The reversal of 471243817 is 718342174.

It can be written as a sum of positive squares in 2 ways, for example, as 62031376 + 409212441 = 7876^2 + 20229^2 .

It is a de Polignac number, because none of the positive numbers 2k-471243817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (471243847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11143 + ... + 32659.

Almost surely, 2471243817 is an apocalyptic number.

It is an amenable number.

471243817 is a deficient number, since it is larger than the sum of its proper divisors (49620891).

471243817 is a wasteful number, since it uses less digits than its factorization.

471243817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21720 (or 21709 counting only the distinct ones).

The product of its digits is 37632, while the sum is 37.

The square root of 471243817 is about 21708.1509346144. The cubic root of 471243817 is about 778.1832674700.

The spelling of 471243817 in words is "four hundred seventy-one million, two hundred forty-three thousand, eight hundred seventeen".

Divisors: 1 11 121 181 1991 21517 21901 236687 2603557 3894577 42840347 471243817