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470889813 = 3156963271
BaseRepresentation
bin11100000100010…
…011010101010101
31012211001200101110
4130010103111111
51431021433223
6114420445233
714445332412
oct3404232525
91184050343
10470889813
11221894539
12111849819
1376732134
1446779109
152b517d93
hex1c113555

470889813 has 4 divisors (see below), whose sum is σ = 627853088. Its totient is φ = 313926540.

The previous prime is 470889803. The next prime is 470889827. The reversal of 470889813 is 318988074.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 470889813 - 218 = 470627669 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 (470889803) 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 3 ways as a sum of consecutive naturals, for example, 78481633 + ... + 78481638.

It is an arithmetic number, because the mean of its divisors is an integer number (156963272).

Almost surely, 2470889813 is an apocalyptic number.

It is an amenable number.

470889813 is a deficient number, since it is larger than the sum of its proper divisors (156963275).

470889813 is a wasteful number, since it uses less digits than its factorization.

470889813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156963274.

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 470889813 is about 21699.9956912438. The cubic root of 470889813 is about 777.9883584586.

The spelling of 470889813 in words is "four hundred seventy million, eight hundred eighty-nine thousand, eight hundred thirteen".

Divisors: 1 3 156963271 470889813