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470819641 = 1727695273
BaseRepresentation
bin11100000100000…
…010001100111001
31012210221010010111
4130010002030321
51431012212031
6114415144321
714444621005
oct3404021471
91183833114
10470819641
11221846846
121118150a1
1376709206
144675b705
152b5021b1
hex1c102339

470819641 has 4 divisors (see below), whose sum is σ = 498514932. Its totient is φ = 443124352.

The previous prime is 470819621. The next prime is 470819647. The reversal of 470819641 is 146918074.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 146918074 = 273459037.

It can be written as a sum of positive squares in 2 ways, for example, as 161798400 + 309021241 = 12720^2 + 17579^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-470819641 is a prime.

It is a super-2 number, since 2×4708196412 = 443342268702737762, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 470819594 and 470819603.

It is not an unprimeable number, because it can be changed into a prime (470819647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13847620 + ... + 13847653.

It is an arithmetic number, because the mean of its divisors is an integer number (124628733).

Almost surely, 2470819641 is an apocalyptic number.

It is an amenable number.

470819641 is a deficient number, since it is larger than the sum of its proper divisors (27695291).

470819641 is a wasteful number, since it uses less digits than its factorization.

470819641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27695290.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 470819641 is about 21698.3787643225. The cubic root of 470819641 is about 777.9497112637.

The spelling of 470819641 in words is "four hundred seventy million, eight hundred nineteen thousand, six hundred forty-one".

Divisors: 1 17 27695273 470819641