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208343630 = 25111894033
BaseRepresentation
bin11000110101100…
…01001001001110
3112112000221201202
430122301021032
5411313444010
632401305502
75106614555
oct1432611116
9475027652
10208343630
11a7671720
1259935292
1334218c71
141d954d9c
15134566a5
hexc6b124e

208343630 has 16 divisors (see below), whose sum is σ = 409111344. Its totient is φ = 75761280.

The previous prime is 208343623. The next prime is 208343677. The reversal of 208343630 is 36343802.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 208343593 and 208343602.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 946907 + ... + 947126.

It is an arithmetic number, because the mean of its divisors is an integer number (25569459).

Almost surely, 2208343630 is an apocalyptic number.

208343630 is a deficient number, since it is larger than the sum of its proper divisors (200767714).

208343630 is a wasteful number, since it uses less digits than its factorization.

208343630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1894051.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 208343630 is about 14434.1134123298. The cubic root of 208343630 is about 592.8253170260.

The spelling of 208343630 in words is "two hundred eight million, three hundred forty-three thousand, six hundred thirty".