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428030210 = 2542803021
BaseRepresentation
bin11001100000110…
…011100100000010
31002211102012001202
4121200303210002
51334033431320
6110250101202
713415124326
oct3140634402
91084365052
10428030210
111aa680483
12bb41a802
136a8a6b1a
1440bbd986
152789db75
hex19833902

428030210 has 8 divisors (see below), whose sum is σ = 770454396. Its totient is φ = 171212080.

The previous prime is 428030203. The next prime is 428030221. The reversal of 428030210 is 12030824.

It can be written as a sum of positive squares in 2 ways, for example, as 427207561 + 822649 = 20669^2 + 907^2 .

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

It is an unprimeable number.

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, 21401501 + ... + 21401520.

Almost surely, 2428030210 is an apocalyptic number.

428030210 is a deficient number, since it is larger than the sum of its proper divisors (342424186).

428030210 is a wasteful number, since it uses less digits than its factorization.

428030210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42803028.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 428030210 is about 20688.8909804272. The cubic root of 428030210 is about 753.6299349382.

The spelling of 428030210 in words is "four hundred twenty-eight million, thirty thousand, two hundred ten".

Divisors: 1 2 5 10 42803021 85606042 214015105 428030210