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628984146 = 23714975813
BaseRepresentation
bin100101011111011…
…000100101010010
31121211112201001010
4211133120211102
52242004443041
6142225151350
721405164010
oct4537304522
91554481033
10628984146
112a305510a
1215678b556
13a040638b
145d76d8b0
153a345a16
hex257d8952

628984146 has 16 divisors (see below), whose sum is σ = 1437678144. Its totient is φ = 179709744.

The previous prime is 628984129. The next prime is 628984159. The reversal of 628984146 is 641489826.

628984146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 628984095 and 628984104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7487865 + ... + 7487948.

It is an arithmetic number, because the mean of its divisors is an integer number (89854884).

Almost surely, 2628984146 is an apocalyptic number.

628984146 is an abundant number, since it is smaller than the sum of its proper divisors (808693998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

628984146 is a wasteful number, since it uses less digits than its factorization.

628984146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14975825.

The product of its digits is 663552, while the sum is 48.

The square root of 628984146 is about 25079.5563357887. The cubic root of 628984146 is about 856.8008716114.

The spelling of 628984146 in words is "six hundred twenty-eight million, nine hundred eighty-four thousand, one hundred forty-six".

Divisors: 1 2 3 6 7 14 21 42 14975813 29951626 44927439 89854878 104830691 209661382 314492073 628984146