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208480790 = 2572425471
BaseRepresentation
bin11000110110100…
…10101000010110
3112112021220212202
430123102220112
5411332341130
632404244502
75111025500
oct1433225026
9475256782
10208480790
11a7755781
12599a0732
133426651b
141d98cd70
1513482145
hexc6d2a16

208480790 has 24 divisors (see below), whose sum is σ = 436534272. Its totient is φ = 71478960.

The previous prime is 208480759. The next prime is 208480793. The reversal of 208480790 is 97084802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208480793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 212246 + ... + 213225.

It is an arithmetic number, because the mean of its divisors is an integer number (18188928).

Almost surely, 2208480790 is an apocalyptic number.

208480790 is an abundant number, since it is smaller than the sum of its proper divisors (228053482).

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

208480790 is a wasteful number, since it uses less digits than its factorization.

208480790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425492 (or 425485 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 208480790 is about 14438.8638749730. The cubic root of 208480790 is about 592.9553811314.

The spelling of 208480790 in words is "two hundred eight million, four hundred eighty thousand, seven hundred ninety".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 425471 850942 2127355 2978297 4254710 5956594 14891485 20848079 29782970 41696158 104240395 208480790