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470749819 = 809581891
BaseRepresentation
bin11100000011110…
…001001001111011
31012210210120100111
4130003301021323
51431002443234
6114413445151
714444210311
oct3403611173
91183716314
10470749819
112217a9341
121117a07b7
13766b34b7
14467400b1
152b4db664
hex1c0f127b

470749819 has 4 divisors (see below), whose sum is σ = 471332520. Its totient is φ = 470167120.

The previous prime is 470749813. The next prime is 470749847. The reversal of 470749819 is 918947074.

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 470749819 - 27 = 470749691 is a prime.

It is a super-2 number, since 2×4707498192 = 443210784177065522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (470749813) 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, 290137 + ... + 291754.

It is an arithmetic number, because the mean of its divisors is an integer number (117833130).

Almost surely, 2470749819 is an apocalyptic number.

470749819 is a deficient number, since it is larger than the sum of its proper divisors (582701).

470749819 is an equidigital number, since it uses as much as digits as its factorization.

470749819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582700.

The product of its (nonzero) digits is 508032, while the sum is 49.

The square root of 470749819 is about 21696.7697826197. The cubic root of 470749819 is about 777.9112530195.

The spelling of 470749819 in words is "four hundred seventy million, seven hundred forty-nine thousand, eight hundred nineteen".

Divisors: 1 809 581891 470749819