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471711213 = 3252412357
BaseRepresentation
bin11100000111011…
…011110111101101
31012212121102010200
4130013123313231
51431224224323
6114450224113
714455323231
oct3407336755
91185542120
10471711213
112222a5686
12111b85039
137695bc7c
14469105c1
152b62b443
hex1c1dbded

471711213 has 6 divisors (see below), whose sum is σ = 681360654. Its totient is φ = 314474136.

The previous prime is 471711211. The next prime is 471711241. The reversal of 471711213 is 312117174.

471711213 is a `hidden beast` number, since 471 + 71 + 121 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 466430409 + 5280804 = 21597^2 + 2298^2 .

It is not a de Polignac number, because 471711213 - 21 = 471711211 is a prime.

It is a super-2 number, since 2×4717112132 = 445022936939862738, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (471711211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26206170 + ... + 26206187.

It is an arithmetic number, because the mean of its divisors is an integer number (113560109).

Almost surely, 2471711213 is an apocalyptic number.

It is an amenable number.

471711213 is a deficient number, since it is larger than the sum of its proper divisors (209649441).

471711213 is a wasteful number, since it uses less digits than its factorization.

471711213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52412363 (or 52412360 counting only the distinct ones).

The product of its digits is 1176, while the sum is 27.

The square root of 471711213 is about 21718.9137159297. The cubic root of 471711213 is about 778.4404588640.

Adding to 471711213 its reverse (312117174), we get a palindrome (783828387).

It can be divided in two parts, 47171 and 1213, that added together give a palindrome (48384).

The spelling of 471711213 in words is "four hundred seventy-one million, seven hundred eleven thousand, two hundred thirteen".

Divisors: 1 3 9 52412357 157237071 471711213