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417830421 = 3281495647
BaseRepresentation
bin11000111001111…
…001011000010101
31002010012222120210
4120321321120111
51323431033141
6105243320033
713232333331
oct3071713025
91063188523
10417830421
111a49441a8
12b7b20019
1368745348
143d6c67c1
1526a36916
hex18e79615

417830421 has 8 divisors (see below), whose sum is σ = 559090944. Its totient is φ = 277561760.

The previous prime is 417830393. The next prime is 417830473. The reversal of 417830421 is 124038714.

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 417830421 - 27 = 417830293 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (417830321) 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, 246981 + ... + 248666.

It is an arithmetic number, because the mean of its divisors is an integer number (69886368).

Almost surely, 2417830421 is an apocalyptic number.

It is an amenable number.

417830421 is a deficient number, since it is larger than the sum of its proper divisors (141260523).

417830421 is a wasteful number, since it uses less digits than its factorization.

417830421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495931.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 417830421 is about 20440.9006895489. The cubic root of 417830421 is about 747.5955119320.

The spelling of 417830421 in words is "four hundred seventeen million, eight hundred thirty thousand, four hundred twenty-one".

Divisors: 1 3 281 843 495647 1486941 139276807 417830421