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208429160 = 2355210729
BaseRepresentation
bin11000110110001…
…10000001101000
3112112012022001112
430123012001220
5411324213120
632403205452
75110422122
oct1433060150
9475168045
10208429160
11a771aa05
1259976888
1334248b84
141d978212
1513471bc5
hexc6c6068

208429160 has 16 divisors (see below), whose sum is σ = 468965700. Its totient is φ = 83371648.

The previous prime is 208429157. The next prime is 208429201. The reversal of 208429160 is 61924802.

It can be written as a sum of positive squares in 2 ways, for example, as 208340356 + 88804 = 14434^2 + 298^2 .

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, 2605325 + ... + 2605404.

Almost surely, 2208429160 is an apocalyptic number.

208429160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208429160 is an abundant number, since it is smaller than the sum of its proper divisors (260536540).

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

208429160 is a wasteful number, since it uses less digits than its factorization.

208429160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5210740 (or 5210736 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 208429160 is about 14437.0758812164. The cubic root of 208429160 is about 592.9064288772.

The spelling of 208429160 in words is "two hundred eight million, four hundred twenty-nine thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 5210729 10421458 20842916 26053645 41685832 52107290 104214580 208429160