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430640473 = 8912133989
BaseRepresentation
bin11001101010110…
…000110101011001
31010000022210200011
4121222300311121
51340220443343
6110422041521
713446245404
oct3152606531
91100283604
10430640473
112010a361a
121002792a1
136b2abc63
144129cd3b
1527c1729d
hex19ab0d59

430640473 has 8 divisors (see below), whose sum is σ = 435947400. Its totient is φ = 425344128.

The previous prime is 430640471. The next prime is 430640501. The reversal of 430640473 is 374046034.

It can be written as a sum of positive squares in 4 ways, for example, as 2647129 + 427993344 = 1627^2 + 20688^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 430640473 - 21 = 430640471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (430640471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105963 + ... + 109951.

It is an arithmetic number, because the mean of its divisors is an integer number (54493425).

Almost surely, 2430640473 is an apocalyptic number.

It is an amenable number.

430640473 is a deficient number, since it is larger than the sum of its proper divisors (5306927).

430640473 is a wasteful number, since it uses less digits than its factorization.

430640473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5291.

The product of its (nonzero) digits is 24192, while the sum is 31.

The square root of 430640473 is about 20751.8787824139. The cubic root of 430640473 is about 755.1587888756.

The spelling of 430640473 in words is "four hundred thirty million, six hundred forty thousand, four hundred seventy-three".

Divisors: 1 89 1213 3989 107957 355021 4838657 430640473