Search a number
-
+
471711845 = 51128832
BaseRepresentation
bin11100000111011…
…100000001100101
31012212121110000002
4130013130001211
51431224234340
6114450231045
714455325123
oct3407340145
91185543002
10471711845
112222a6100
12111b85485
137695c347
1446910913
152b62b715
hex1c1dc065

471711845 has 18 divisors (see below), whose sum is σ = 622897254. Its totient is φ = 342674640.

The previous prime is 471711791. The next prime is 471711893. The reversal of 471711845 is 548117174.

It can be written as a sum of positive squares in only one way, i.e., 377369476 + 94342369 = 19426^2 + 9713^2 .

It is not a de Polignac number, because 471711845 - 26 = 471711781 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 471711799 and 471711808.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 533774 + ... + 534656.

It is an arithmetic number, because the mean of its divisors is an integer number (34605403).

Almost surely, 2471711845 is an apocalyptic number.

It is an amenable number.

471711845 is a deficient number, since it is larger than the sum of its proper divisors (151185409).

471711845 is an frugal number, since it uses more digits than its factorization.

471711845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793 (or 899 counting only the distinct ones).

The product of its digits is 31360, while the sum is 38.

The square root of 471711845 is about 21718.9282654555. The cubic root of 471711845 is about 778.4408065161.

The spelling of 471711845 in words is "four hundred seventy-one million, seven hundred eleven thousand, eight hundred forty-five".

Divisors: 1 5 11 55 121 605 883 4415 9713 48565 106843 534215 779689 3898445 8576579 42882895 94342369 471711845