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471923071 = 1049449879
BaseRepresentation
bin11100001000001…
…111100101111111
31012220000011202021
4130020033211333
51431303014241
6114454541011
714460165004
oct3410174577
91186004667
10471923071
1122242a874
12112067767
1376a04529
14469678ab
152b66e0d1
hex1c20f97f

471923071 has 4 divisors (see below), whose sum is σ = 472374000. Its totient is φ = 471472144.

The previous prime is 471923069. The next prime is 471923113. The reversal of 471923071 is 170329174.

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 471923071 - 21 = 471923069 is a prime.

It is a super-2 number, since 2×4719230712 = 445422769884142082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (471923041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223891 + ... + 225988.

It is an arithmetic number, because the mean of its divisors is an integer number (118093500).

Almost surely, 2471923071 is an apocalyptic number.

471923071 is a deficient number, since it is larger than the sum of its proper divisors (450929).

471923071 is a wasteful number, since it uses less digits than its factorization.

471923071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450928.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 471923071 is about 21723.7904381349. The cubic root of 471923071 is about 778.5569808310.

The spelling of 471923071 in words is "four hundred seventy-one million, nine hundred twenty-three thousand, seventy-one".

Divisors: 1 1049 449879 471923071