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471213871 = 1727718463
BaseRepresentation
bin11100000101100…
…010011100101111
31012211200010220121
4130011202130233
51431112320441
6114431425411
714451152242
oct3405423457
91184603817
10471213871
11221a95a57
12111985267
137681679b
1446821259
152b57ddd1
hex1c16272f

471213871 has 4 divisors (see below), whose sum is σ = 498932352. Its totient is φ = 443495392.

The previous prime is 471213863. The next prime is 471213877. The reversal of 471213871 is 178312174.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 471213871 - 23 = 471213863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (471213877) 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, 13859215 + ... + 13859248.

It is an arithmetic number, because the mean of its divisors is an integer number (124733088).

Almost surely, 2471213871 is an apocalyptic number.

471213871 is a deficient number, since it is larger than the sum of its proper divisors (27718481).

471213871 is a wasteful number, since it uses less digits than its factorization.

471213871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27718480.

The product of its digits is 9408, while the sum is 34.

The square root of 471213871 is about 21707.4611827362. The cubic root of 471213871 is about 778.1667834554.

The spelling of 471213871 in words is "four hundred seventy-one million, two hundred thirteen thousand, eight hundred seventy-one".

Divisors: 1 17 27718463 471213871